THE ERROR LOG ON THE SERVER IS AS BELOW:
[03-Feb-2024 20:33:40 Africa/Lagos] Slim Application Error:
Type: Error
Message: Call to a member function getFullName() on null
File: /home/lafiasci/public_html/lib/pkp/classes/submission/reviewAssignment/ReviewAssignmentDAO.php
Line: 524
Trace: #0 /home/lafiasci/public_html/lib/pkp/classes/submission/reviewAssignment/ReviewAssignmentDAO.php(78): PKP\submission\reviewAssignment\ReviewAssignmentDAO->_fromRow(Array)
#1 /home/lafiasci/public_html/lib/pkp/classes/submission/reviewAssignment/ReviewAssignmentDAO.php(211): PKP\submission\reviewAssignment\ReviewAssignmentDAO->_getReviewAssignmentsArray(‘SELECT r.*, r2…’, Array)
#2 /home/lafiasci/public_html/lib/pkp/classes/submission/maps/Schema.php(277): PKP\submission\reviewAssignment\ReviewAssignmentDAO->getBySubmissionId(270)
#3 /home/lafiasci/public_html/lib/pkp/classes/submission/maps/Schema.php(239): PKP\submission\maps\Schema->getPropertyReviewAssignments(Object(APP\submission\Submission))
#4 /home/lafiasci/public_html/classes/submission/maps/Schema.php(26): PKP\submission\maps\Schema->mapByProperties(Array, Object(APP\submission\Submission))
#5 /home/lafiasci/public_html/lib/pkp/classes/submission/maps/Schema.php(160): APP\submission\maps\Schema->mapByProperties(Array, Object(APP\submission\Submission))
#6 /home/lafiasci/public_html/lib/pkp/classes/submission/maps/Schema.php(177): PKP\submission\maps\Schema->mapToSubmissionsList(Object(APP\submission\Submission), Object(Illuminate\Support\LazyCollection), Array)
#7 /home/lafiasci/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Collections/LazyCollection.php(789): PKP\submission\maps\Schema->PKP\submission\maps{closure}(Object(APP\submission\Submission), 270)
#8 /home/lafiasci/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Collections/LazyCollection.php(1563): Illuminate\Support\LazyCollection->Illuminate\Support{closure}()
#9 [internal function]: Illuminate\Support\LazyCollection->Illuminate\Support{closure}()
#10 /home/lafiasci/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Collections/LazyCollection.php(105): iterator_to_array(Object(Generator))
#11 /home/lafiasci/public_html/lib/pkp/lib/vendor/laravel/framework/src/Illuminate/Collections/Traits/EnumeratesValues.php(867): Illuminate\Support\LazyCollection->all()
#12 [internal function]: Illuminate\Support\LazyCollection->jsonSerialize()
#13 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Http/Response.php(352): json_encode(Array, 0)
#14 /home/lafiasci/public_html/lib/pkp/api/v1/_submissions/PKPBackendSubmissionsHandler.php(139): Slim\Http\Response->withJson(Array, 200)
#15 [internal function]: PKP\API\v1_submissions\PKPBackendSubmissionsHandler->getMany(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Array)
#16 /home/lafiasci/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)
#17 /home/lafiasci/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)
#18 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#19 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#20 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#21 /home/lafiasci/public_html/lib/pkp/classes/security/authorization/internal/ApiAuthorizationMiddleware.php(90): Slim\App->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#22 [internal function]: PKP\security\authorization\internal\ApiAuthorizationMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#23 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiAuthorizationMiddleware), Array)
#24 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Slim\App))
#25 /home/lafiasci/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))
#26 /home/lafiasci/public_html/lib/pkp/classes/security/authorization/internal/ApiCsrfMiddleware.php(56): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#27 [internal function]: PKP\security\authorization\internal\ApiCsrfMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#28 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiCsrfMiddleware), Array)
#29 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#30 /home/lafiasci/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))
#31 /home/lafiasci/public_html/lib/pkp/classes/security/authorization/internal/ApiTokenDecodingMiddleware.php(140): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#32 [internal function]: PKP\security\authorization\internal\ApiTokenDecodingMiddleware->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#33 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(PKP\security\authorization\internal\ApiTokenDecodingMiddleware), Array)
#34 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#35 /home/lafiasci/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))
#36 /home/lafiasci/public_html/lib/pkp/classes/handler/APIHandler.php(83): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#37 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#38 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#39 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#40 /home/lafiasci/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))
#41 /home/lafiasci/public_html/lib/pkp/classes/handler/APIHandler.php(100): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#42 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#43 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#44 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#45 /home/lafiasci/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))
#46 /home/lafiasci/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#47 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#48 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#49 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#50 /home/lafiasci/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))
#51 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#52 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#53 /home/lafiasci/public_html/lib/pkp/classes/handler/APIHandler.php(98): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#54 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#55 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#56 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#57 /home/lafiasci/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))
#58 /home/lafiasci/public_html/lib/pkp/classes/handler/APIHandler.php(105): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#59 [internal function]: PKP\handler\APIHandler->PKP\handler{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#60 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#61 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(PKP\core\APIResponse), Object(Closure))
#62 /home/lafiasci/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))
#63 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim{closure}(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#64 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#65 /home/lafiasci/public_html/lib/pkp/lib/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(PKP\core\APIResponse))
#66 /home/lafiasci/public_html/lib/pkp/classes/core/APIRouter.php(110): Slim\App->run()
#67 /home/lafiasci/public_html/lib/pkp/classes/core/Dispatcher.php(165): PKP\core\APIRouter->route(Object(APP\core\Request))
#68 /home/lafiasci/public_html/lib/pkp/classes/core/PKPApplication.php(387): PKP\core\Dispatcher->dispatch(Object(APP\core\Request))
#69 /home/lafiasci/public_html/index.php(21): PKP\core\PKPApplication->execute()
#70 {main}
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