Describe the issue or problem
I recently installed OJS 3.4.0.4 on a new VPS (we have the same version installed on a local machine with PHP 8 and it is working fine) but unable to upload anything it simply brings a red logo with an inner white triangle and stops uploading I have tried all I know but this error is not solving kindly help me out find below PHP error log…
[30-Apr-2024 10:35:34 UTC] Slim Application Error:
Type: Error
Message: Call to undefined function shell_exec()
File: /home/kwasucloud/public_html/lib/pkp/classes/core/PKPString.php
Line: 348
Trace: #0 /home/kwasucloud/public_html/lib/pkp/classes/file/TemporaryFileManager.php(122): PKP\core\PKPString::mime_content_type(‘/home/kwasuclou…’, ‘jpeg’)
#1 /home/kwasucloud/public_html/lib/pkp/api/v1/temporaryFiles/PKPTemporaryFilesHandler.php(107): PKP\file\TemporaryFileManager->handleUpload(‘file’, 1)
#2 [internal function]: PKP\API\v1\temporaryFiles\PKPTemporaryFilesHandler->uploadFile(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#3 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func(Array, Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#4 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke(Array, Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#5 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#6 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#7 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#8 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiAuthorizationMiddleware.php(90): Slim\App->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#9 [internal function]: PKP\security\authorization\internal\ApiAuthorizationMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#10 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiAuthorizationMiddleware), Array)
#11 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#12 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#13 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiCsrfMiddleware.php(56): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#14 [internal function]: PKP\security\authorization\internal\ApiCsrfMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#15 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiCsrfMiddleware), Array)
#16 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#17 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#18 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiTokenDecodingMiddleware.php(140): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#19 [internal function]: PKP\security\authorization\internal\ApiTokenDecodingMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#20 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiTokenDecodingMiddleware), Array)
#21 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#22 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#23 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(83): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#24 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#25 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#26 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#27 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#28 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(100): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#29 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#30 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#31 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#32 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#33 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#34 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#35 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#36 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#37 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#38 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#39 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#40 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(98): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#41 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#42 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#43 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#44 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#45 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#46 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#47 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#48 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#49 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#50 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#51 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#52 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#53 /home/kwasucloud/public_html/lib/pkp/classes/core/APIRouter.php(110): Slim\App->run()
#54 /home/kwasucloud/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\APIRouter->route(Object(APP\core\Request))
#55 /home/kwasucloud/public_html/lib/pkp/classes/core/PKPApplication.php(388): PKP\core\Dispatcher->dispatch(Object(APP\core\Request))
#56 /home/kwasucloud/public_html/index.php(21): PKP\core\PKPApplication->execute()
#57 {main}
View in rendered output by enabling the “displayErrorDetails” setting.
Hello @Suraj !!
Some shared hosting or servers do not allow running shell_exec
on the production server.
That brings fatal errors like the one you shared.
Error: Call to undefined function shell_exec()
One solution, if that is the case, is to edit your php.ini file and remove shell_exec from the disable_functions directive (and then restarting the webserver)
Hope that helps
Thank you for your reply I was able to enable shell exec() for my php.ini but after that, the error still persists pls view the log below …
[30-Apr-2024 18:46:15 UTC] Slim Application Error:
Type: Error
Message: Class "finfo" not found
File: /home/kwasucloud/public_html/lib/pkp/lib/vendor/league/mime-type-detection/src/FinfoMimeTypeDetector.php
Line: 48
Trace: #0 /home/kwasucloud/public_html/lib/pkp/lib/vendor/league/flysystem/src/Local/LocalFilesystemAdapter.php(83): League\MimeTypeDetection\FinfoMimeTypeDetector->__construct()
#1 /home/kwasucloud/public_html/lib/pkp/classes/services/PKPFileService.php(56): League\Flysystem\Local\LocalFilesystemAdapter->__construct(‘/home/kwasuclou…’, Object(League\Flysystem\UnixVisibility\PortableVisibilityConverter), 2, 2)
#2 /home/kwasucloud/public_html/classes/services/OJSServiceProvider.php(37): PKP\services\PKPFileService->__construct()
#3 /home/kwasucloud/public_html/lib/pkp/lib/vendor/pimple/pimple/src/Pimple/Container.php(122): APP\services\OJSServiceProvider->APP\services{closure}(Object(Pimple\Container))
#4 /home/kwasucloud/public_html/lib/pkp/classes/core/PKPServices.php(84): Pimple\Container->offsetGet(‘file’)
#5 /home/kwasucloud/public_html/lib/pkp/classes/core/PKPServices.php(60): PKP\core\PKPServices->_getFromContainer(‘file’)
#6 /home/kwasucloud/public_html/lib/pkp/api/v1/temporaryFiles/PKPTemporaryFilesHandler.php(132): PKP\core\PKPServices::get(‘file’)
#7 [internal function]: PKP\API\v1\temporaryFiles\PKPTemporaryFilesHandler->uploadFile(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#8 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func(Array, Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#9 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke(Array, Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#10 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#11 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#12 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#13 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiAuthorizationMiddleware.php(90): Slim\App->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#14 [internal function]: PKP\security\authorization\internal\ApiAuthorizationMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#15 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiAuthorizationMiddleware), Array)
#16 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#17 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#18 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiCsrfMiddleware.php(56): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#19 [internal function]: PKP\security\authorization\internal\ApiCsrfMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#20 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiCsrfMiddleware), Array)
#21 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#22 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#23 /home/kwasucloud/public_html/lib/pkp/classes/security/authorization/internal/ApiTokenDecodingMiddleware.php(140): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#24 [internal function]: PKP\security\authorization\internal\ApiTokenDecodingMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#25 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiTokenDecodingMiddleware), Array)
#26 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#27 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#28 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(83): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#29 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#30 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#31 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#32 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#33 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(100): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#34 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#35 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#36 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#37 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#38 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#39 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#40 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#41 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#42 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#43 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#44 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#45 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(98): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#46 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#47 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#48 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#49 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#50 /home/kwasucloud/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#51 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#52 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#53 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#54 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#55 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#56 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#57 /home/kwasucloud/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#58 /home/kwasucloud/public_html/lib/pkp/classes/core/APIRouter.php(110): Slim\App->run()
#59 /home/kwasucloud/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\APIRouter->route(Object(APP\core\Request))
#60 /home/kwasucloud/public_html/lib/pkp/classes/core/PKPApplication.php(388): PKP\core\Dispatcher->dispatch(Object(APP\core\Request))
#61 /home/kwasucloud/public_html/index.php(21): PKP\core\PKPApplication->execute()
#62 {main}
View in rendered output by enabling the “displayErrorDetails” setting.
Problem solved…i installed the php extension (finfo) and restarted the webserver and PHP…
Thank you all