Hi @asmecher,
I chose the pubmed export plugin and these are the php log error, there should be no smarty.
[Wed Apr 01 02:23:10.886340 2020] [php7:notice] [pid 24309:tid 139659694819072] [client 10.200.225.11:44196] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 02:23:11.637204 2020] [php7:notice] [pid 24309:tid 139659686426368] [client 10.200.225.11:44214] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 02:23:12.370729 2020] [php7:notice] [pid 23745:tid 139659568928512] [client 10.200.225.11:44222] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 04:55:53.293164 2020] [php7:notice] [pid 26050:tid 139659485099776] [client 10.200.225.11:57620] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 04:55:53.964110 2020] [php7:notice] [pid 26050:tid 139659392780032] [client 10.200.225.11:57638] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 04:55:54.639368 2020] [php7:notice] [pid 26051:tid 139659594106624] [client 10.200.225.11:57646] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 07:09:57.342878 2020] [php7:warn] [pid 26053:tid 139659703211776] [client 10.200.225.11:51188] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 08:16:50.720268 2020] [php7:notice] [pid 26270:tid 139659644462848] [client 10.200.225.11:34748] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 08:16:51.878166 2020] [php7:notice] [pid 26053:tid 139659817506560] [client 10.200.225.11:34774] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 08:16:53.030156 2020] [php7:notice] [pid 26053:tid 139659661248256] [client 10.200.225.11:34804] ojs2: 404 Not Found, referer: http://jperitoneum.org/index.php
[Wed Apr 01 10:17:34.369345 2020] [php7:warn] [pid 26270:tid 139659636070144] [client 10.200.225.11:59062] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 00:25:47.668680 2020] [php7:warn] [pid 4687:tid 140688423380736] [client 10.200.225.11:55364] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 02:04:52.595486 2020] [php7:warn] [pid 3789:tid 140688398202624] [client 10.200.225.11:53352] PHP Warning: include(/var/www/vhosts/joper/cache/fc-locale-f7d63cc9ec63a26b93620b360593cb1f.php): failed to open stream: Too many open files in /var/www/vhosts/joper/lib/pkp/classes/cache/FileCache.inc.php on line 46
[Wed Apr 01 02:04:52.595545 2020] [php7:warn] [pid 3789:tid 140688398202624] [client 10.200.225.11:53352] PHP Warning: include(): Failed opening ‘/var/www/vhosts/joper/cache/fc-locale-f7d63cc9ec63a26b93620b360593cb1f.php’ for inclusion (include_path=’.:/usr/share/pear:/usr/share/php’) in /var/www/vhosts/joper/lib/pkp/classes/cache/FileCache.inc.php on line 46
[Wed Apr 01 02:04:52.610962 2020] [php7:warn] [pid 3789:tid 140688398202624] [client 10.200.225.11:53352] PHP Warning: include(/var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/QueryException.php): failed to open stream: Too many open files in /var/www/vhosts/joper/lib/pkp/lib/vendor/composer/ClassLoader.php on line 444
[Wed Apr 01 02:04:52.611001 2020] [php7:warn] [pid 3789:tid 140688398202624] [client 10.200.225.11:53352] PHP Warning: include(): Failed opening ‘/var/www/vhosts/joper/lib/pkp/lib/vendor/composer/…/illuminate/database/QueryException.php’ for inclusion (include_path=’.:/usr/share/pear:/usr/share/php’) in /var/www/vhosts/joper/lib/pkp/lib/vendor/composer/ClassLoader.php on line 444
[Wed Apr 01 02:04:52.611204 2020] [php7:error] [pid 3789:tid 140688398202624] [client 10.200.225.11:53352] PHP Fatal error: Uncaught Error: Class ‘Illuminate\Database\QueryException’ not found in /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Connection.php:664\nStack trace:\n#0 /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Connection.php(624): Illuminate\Database\Connection->runQueryCallback(‘select count()…’, Array, Object(Closure))\n#1 /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Connection.php(333): Illuminate\Database\Connection->run('select count()…’, Array, Object(Closure))\n#2 /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Query/Builder.php(2130): Illuminate\Database\Connection->select(‘select count(*)…’, Array, true)\n#3 /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Query/Builder.php(2118): Illuminate\Database\Query\Builder->runSelect()\n#4 /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Query/Builder.php(2604): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}()\n#5 /var/www/vhosts/joper/lib/pkp/lib/vendor/illumin in /var/www/vhosts/joper/lib/pkp/lib/vendor/illuminate/database/Connection.php on line 664
[Wed Apr 01 04:04:38.954172 2020] [php7:warn] [pid 3789:tid 140688543618816] [client 10.200.225.11:36134] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 07:55:41.061314 2020] [php7:notice] [pid 4687:tid 140688314275584] [client 10.200.225.11:35258] ojs2: 404 Not Found
[Wed Apr 01 07:55:41.106855 2020] [php7:notice] [pid 4687:tid 140688535226112] [client 10.200.225.11:35272] ojs2: 404 Not Found
[Wed Apr 01 07:55:42.555470 2020] [php7:notice] [pid 4960:tid 140688389809920] [client 10.200.225.11:35308] ojs2: 404 Not Found
[Wed Apr 01 07:55:42.958734 2020] [php7:notice] [pid 5775:tid 140688347846400] [client 10.200.225.11:35310] ojs2: 404 Not Found
[Wed Apr 01 07:55:45.846096 2020] [php7:notice] [pid 4761:tid 140688389809920] [client 10.200.225.11:35448] ojs2: 404 Not Found
[Wed Apr 01 07:55:46.144646 2020] [php7:notice] [pid 5775:tid 140688510048000] [client 10.200.225.11:35464] ojs2: 404 Not Found
[Wed Apr 01 07:55:47.222777 2020] [php7:notice] [pid 5775:tid 140688331060992] [client 10.200.225.11:35504] ojs2: 404 Not Found
[Wed Apr 01 07:55:47.527140 2020] [php7:notice] [pid 4687:tid 140688347846400] [client 10.200.225.11:35512] ojs2: 404 Not Found
[Wed Apr 01 07:55:48.657757 2020] [php7:notice] [pid 5615:tid 140688373024512] [client 10.200.225.11:35534] ojs2: 404 Not Found
[Wed Apr 01 07:55:48.841216 2020] [php7:notice] [pid 4687:tid 140688406595328] [client 10.200.225.11:35558] ojs2: 404 Not Found
[Wed Apr 01 07:55:49.931285 2020] [php7:notice] [pid 4960:tid 140688552011520] [client 10.200.225.11:35588] ojs2: 404 Not Found
[Wed Apr 01 07:55:50.369086 2020] [php7:notice] [pid 5775:tid 140688389809920] [client 10.200.225.11:35592] ojs2: 404 Not Found
[Wed Apr 01 07:55:51.450376 2020] [php7:notice] [pid 4687:tid 140688364631808] [client 10.200.225.11:35628] ojs2: 404 Not Found
[Wed Apr 01 07:55:51.776344 2020] [php7:notice] [pid 5775:tid 140688364631808] [client 10.200.225.11:35636] ojs2: 404 Not Found
[Wed Apr 01 07:55:53.010435 2020] [php7:notice] [pid 4687:tid 140688510048000] [client 10.200.225.11:35666] ojs2: 404 Not Found
[Wed Apr 01 07:55:53.019652 2020] [php7:notice] [pid 5615:tid 140688543618816] [client 10.200.225.11:35690] ojs2: 404 Not Found
[Wed Apr 01 07:55:53.990769 2020] [php7:notice] [pid 4761:tid 140688518440704] [client 10.200.225.11:35718] ojs2: 404 Not Found
[Wed Apr 01 07:55:54.042401 2020] [php7:notice] [pid 4687:tid 140688543618816] [client 10.200.225.11:35716] ojs2: 404 Not Found
[Wed Apr 01 07:55:54.996932 2020] [php7:notice] [pid 5615:tid 140688364631808] [client 10.200.225.11:35762] ojs2: 404 Not Found
[Wed Apr 01 07:55:55.045641 2020] [php7:notice] [pid 4960:tid 140688398202624] [client 10.200.225.11:35766] ojs2: 404 Not Found
[Wed Apr 01 07:55:56.071000 2020] [php7:notice] [pid 4761:tid 140688431773440] [client 10.200.225.11:35790] ojs2: 404 Not Found
[Wed Apr 01 07:55:56.089703 2020] [php7:notice] [pid 4687:tid 140688364631808] [client 10.200.225.11:35792] ojs2: 404 Not Found
[Wed Apr 01 07:55:57.032916 2020] [php7:notice] [pid 5615:tid 140688356239104] [client 10.200.225.11:35822] ojs2: 404 Not Found
[Wed Apr 01 07:55:57.152640 2020] [php7:notice] [pid 4960:tid 140688526833408] [client 10.200.225.11:35824] ojs2: 404 Not Found
[Wed Apr 01 07:55:58.004682 2020] [php7:notice] [pid 5775:tid 140688406595328] [client 10.200.225.11:35848] ojs2: 404 Not Found
[Wed Apr 01 07:55:58.102026 2020] [php7:notice] [pid 5775:tid 140688364631808] [client 10.200.225.11:35850] ojs2: 404 Not Found
[Wed Apr 01 07:55:58.985732 2020] [php7:notice] [pid 4687:tid 140688305882880] [client 10.200.225.11:35878] ojs2: 404 Not Found
[Wed Apr 01 07:55:59.096718 2020] [php7:notice] [pid 4761:tid 140688543618816] [client 10.200.225.11:35882] ojs2: 404 Not Found
[Wed Apr 01 07:55:59.846193 2020] [php7:notice] [pid 5615:tid 140688414988032] [client 10.200.225.11:35900] ojs2: 404 Not Found
[Wed Apr 01 07:56:00.010118 2020] [php7:notice] [pid 5615:tid 140688322668288] [client 10.200.225.11:35906] ojs2: 404 Not Found
[Wed Apr 01 07:56:00.930549 2020] [php7:notice] [pid 5615:tid 140688535226112] [client 10.200.225.11:35932] ojs2: 404 Not Found
[Wed Apr 01 07:56:01.152886 2020] [php7:notice] [pid 4761:tid 140688406595328] [client 10.200.225.11:35944] ojs2: 404 Not Found
[Wed Apr 01 07:56:01.377748 2020] [php7:warn] [pid 4687:tid 140688373024512] [client 10.200.225.11:35926] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 07:56:02.082599 2020] [php7:notice] [pid 4960:tid 140688314275584] [client 10.200.225.11:35954] ojs2: 404 Not Found
[Wed Apr 01 07:56:02.175183 2020] [php7:notice] [pid 5775:tid 140688322668288] [client 10.200.225.11:35962] ojs2: 404 Not Found
[Wed Apr 01 07:56:03.057812 2020] [php7:notice] [pid 5615:tid 140688431773440] [client 10.200.225.11:35992] ojs2: 404 Not Found
[Wed Apr 01 07:56:03.097717 2020] [php7:notice] [pid 4687:tid 140688406595328] [client 10.200.225.11:35994] ojs2: 404 Not Found
[Wed Apr 01 08:41:23.450392 2020] [php7:warn] [pid 4761:tid 140688339453696] [client 10.200.225.11:52142] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 08:58:47.669221 2020] [php7:warn] [pid 5615:tid 140688289097472] [client 10.200.225.11:42368] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 09:16:18.280555 2020] [php7:notice] [pid 5615:tid 140688398202624] [client 10.200.225.11:40278] PHP Notice: Only variables should be passed by reference in /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php on line 167, referer: http://www.jperitoneum.org/index.php/joper/management/importexport/plugin/PubMedExportPlugin
[Wed Apr 01 09:16:18.280755 2020] [php7:error] [pid 5615:tid 140688398202624] [client 10.200.225.11:40278] PHP Fatal error: Uncaught Error: Call to a member function saveXml() on null in /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php:168\nStack trace:\n#0 /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php(105): PubMedExportPlugin->exportIssues(Array, Object(Journal), Object(User))\n#1 /var/www/vhosts/joper/lib/pkp/pages/management/PKPToolsHandler.inc.php(104): PubMedExportPlugin->display(Array, Object(Request))\n#2 /var/www/vhosts/joper/lib/pkp/classes/core/PKPRouter.inc.php(391): PKPToolsHandler->importexport(Array, Object(Request))\n#3 /var/www/vhosts/joper/lib/pkp/classes/core/PKPPageRouter.inc.php(231): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false)\n#4 /var/www/vhosts/joper/lib/pkp/classes/core/Dispatcher.inc.php(143): PKPPageRouter->route(Object(Request))\n#5 /var/www/vhosts/joper/lib/pkp/classes/core/PKPApplication.inc.php(278): Dispatcher->dispatch(Object(Request))\n#6 /var/www/vhosts/joper/index.php(68): PKPApplication->execute()\n#7 {main in /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php on line 168, referer: http://www.jperitoneum.org/index.php/joper/management/importexport/plugin/PubMedExportPlugin
[Wed Apr 01 09:16:39.485289 2020] [php7:error] [pid 5906:tid 140688347846400] [client 10.200.225.11:40724] PHP Fatal error: Uncaught Error: Call to a member function saveXml() on null in /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php:140\nStack trace:\n#0 /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php(92): PubMedExportPlugin->exportSubmissions(Array, Object(Journal), Object(User))\n#1 /var/www/vhosts/joper/lib/pkp/pages/management/PKPToolsHandler.inc.php(104): PubMedExportPlugin->display(Array, Object(Request))\n#2 /var/www/vhosts/joper/lib/pkp/classes/core/PKPRouter.inc.php(391): PKPToolsHandler->importexport(Array, Object(Request))\n#3 /var/www/vhosts/joper/lib/pkp/classes/core/PKPPageRouter.inc.php(231): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false)\n#4 /var/www/vhosts/joper/lib/pkp/classes/core/Dispatcher.inc.php(143): PKPPageRouter->route(Object(Request))\n#5 /var/www/vhosts/joper/lib/pkp/classes/core/PKPApplication.inc.php(278): Dispatcher->dispatch(Object(Request))\n#6 /var/www/vhosts/joper/index.php(68): PKPApplication->execute()\n#7 { in /var/www/vhosts/joper/plugins/importexport/pubmed/PubMedExportPlugin.inc.php on line 140, referer: http://www.jperitoneum.org/index.php/joper/management/importexport/plugin/PubMedExportPlugin
[Wed Apr 01 09:41:40.468181 2020] [php7:warn] [pid 5906:tid 140688373024512] [client 10.200.225.11:40580] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 00:50:30.227099 2020] [php7:warn] [pid 25265:tid 140032803317504] [client 10.200.225.11:51380] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 01:31:03.036107 2020] [php7:warn] [pid 25182:tid 140032736175872] [client 10.200.225.11:56998] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 01:33:57.819186 2020] [php7:warn] [pid 24967:tid 140032934397696] [client 10.200.225.11:59354] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 01:33:58.604256 2020] [php7:error] [pid 24967:tid 140032934397696] [client 10.200.225.11:59354] PHP Fatal error: Uncaught Error: Call to a member function getPublished() on null in /var/www/vhosts/joper/classes/search/ArticleSearch.inc.php:278\nStack trace:\n#0 /var/www/vhosts/joper/plugins/generic/recommendByAuthor/RecommendByAuthorPlugin.inc.php(137): ArticleSearch->formatResults(Array)\n#1 /var/www/vhosts/joper/lib/pkp/classes/plugins/HookRegistry.inc.php(107): RecommendByAuthorPlugin->callbackTemplateArticlePageFooter(‘Templates::Arti…’, Array)\n#2 /var/www/vhosts/joper/lib/pkp/classes/template/PKPTemplateManager.inc.php(1237): HookRegistry::call(‘Templates::Arti…’, Array)\n#3 /var/www/vhosts/joper/cache/t_compile/a4fc84a2d9d2a85c011fcc528f09577e88e2fcff^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php(43): PKPTemplateManager->smartyCallHook(Array, Object(Smarty_Internal_Template))\n#4 /var/www/vhosts/joper/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_5e82f887b4b7a9_76357083(Object(Smarty_Internal_Template))\n#5 /var/www/vhosts/joper/lib/pkp in /var/www/vhosts/joper/classes/search/ArticleSearch.inc.php on line 278
[Wed Apr 01 06:39:06.449764 2020] [php7:notice] [pid 27235:tid 140032786532096] [client 10.200.225.11:42202] PHP Notice: Only variables should be assigned by reference in /var/www/vhosts/joper/classes/oai/ojs/OAIDAO.inc.php on line 147
[Wed Apr 01 06:39:08.068944 2020] [php7:error] [pid 27235:tid 140032786532096] [client 10.200.225.11:42202] PHP Fatal error: Uncaught Error: Call to a member function getProperties() on null in /var/www/vhosts/joper/lib/pkp/plugins/oaiMetadataFormats/dc/PKPOAIMetadataFormat_DC.inc.php:31\nStack trace:\n#0 /var/www/vhosts/joper/plugins/oaiMetadataFormats/dc/OAIMetadataFormat_DC.inc.php(28): PKPOAIMetadataFormat_DC->toXml(Object(Submission), NULL)\n#1 /var/www/vhosts/joper/lib/pkp/classes/oai/OAI.inc.php(788): OAIMetadataFormat_DC->toXml(Object(OAIRecord))\n#2 /var/www/vhosts/joper/lib/pkp/classes/oai/OAI.inc.php(531): OAI->formatMetadata(‘oai_dc’, Object(OAIRecord))\n#3 /var/www/vhosts/joper/lib/pkp/classes/oai/OAI.inc.php(85): OAI->ListRecords()\n#4 /var/www/vhosts/joper/pages/oai/OAIHandler.inc.php(39): OAI->execute()\n#5 /var/www/vhosts/joper/lib/pkp/classes/core/PKPRouter.inc.php(391): OAIHandler->index(Array, Object(Request))\n#6 /var/www/vhosts/joper/lib/pkp/classes/core/PKPPageRouter.inc.php(231): PKPRouter->_authorizeInitializeAndCallRequest(Array, Object(Request), Array, false)\n#7 /var/www/vhosts/joper/lib/pkp/classes/core/Dispatch in /var/www/vhosts/joper/lib/pkp/plugins/oaiMetadataFormats/dc/PKPOAIMetadataFormat_DC.inc.php on line 31
[Wed Apr 01 07:39:32.966855 2020] [php7:warn] [pid 27235:tid 140032778139392] [client 10.200.225.11:48978] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 09:11:35.152639 2020] [php7:warn] [pid 27416:tid 140032926004992] [client 10.200.225.11:37552] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 09:11:49.563893 2020] [php7:warn] [pid 27235:tid 140032761353984] [client 10.200.225.11:37786] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106
[Wed Apr 01 09:11:50.360215 2020] [php7:error] [pid 27235:tid 140032761353984] [client 10.200.225.11:37786] PHP Fatal error: Uncaught Error: Call to a member function getPublished() on null in /var/www/vhosts/joper/classes/search/ArticleSearch.inc.php:278\nStack trace:\n#0 /var/www/vhosts/joper/plugins/generic/recommendByAuthor/RecommendByAuthorPlugin.inc.php(137): ArticleSearch->formatResults(Array)\n#1 /var/www/vhosts/joper/lib/pkp/classes/plugins/HookRegistry.inc.php(107): RecommendByAuthorPlugin->callbackTemplateArticlePageFooter(‘Templates::Arti…’, Array)\n#2 /var/www/vhosts/joper/lib/pkp/classes/template/PKPTemplateManager.inc.php(1237): HookRegistry::call(‘Templates::Arti…’, Array)\n#3 /var/www/vhosts/joper/cache/t_compile/a4fc84a2d9d2a85c011fcc528f09577e88e2fcff^1c372c95cd85572e0fbc9a53d0323a0b229cfc78_0.app.frontendpagesarticle.tpl.php(43): PKPTemplateManager->smartyCallHook(Array, Object(Smarty_Internal_Template))\n#4 /var/www/vhosts/joper/lib/pkp/lib/vendor/smarty/smarty/libs/sysplugins/smarty_template_resource_base.php(123): content_5e82f887b4b7a9_76357083(Object(Smarty_Internal_Template))\n#5 /var/www/vhosts/joper/lib/pkp in /var/www/vhosts/joper/classes/search/ArticleSearch.inc.php on line 278
[Wed Apr 01 10:05:03.406087 2020] [php7:warn] [pid 27416:tid 140032685819648] [client 10.200.225.11:40648] PHP Warning: htmlspecialchars() expects parameter 1 to be string, array given in /var/www/vhosts/joper/plugins/generic/googleScholar/GoogleScholarPlugin.inc.php on line 106