And here is the System Plugins page error:
[Thu Mar 19 09:59:06 2015] [error] [client 145.94.194.126] ojs2 has produced an error\n Message: WARNING: Cannot use a scalar value as an array\n In file: /data/html/ojs-2.4.4-1/classes/journal/JournalSettingsDAO.inc.php\n At line: 83\n Stacktrace: \n Server info:\n OS: Linux\n PHP Version: 5.3.6\n Apache Version: Apache/2.2.3 (Red Hat)\n DB Driver: mysql\n DB server version: 5.5.13, referer: http://footprint.tudelft.nl/index.php/footprint/user
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP Fatal error: Cannot redeclare class TimedViewReportPlugin in /data/html/ojs-2.4.4-1/plugins/generic/timedView/TimedViewReportPlugin.inc.php on line 102, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP Stack trace:, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 1. {main}() /data/html/ojs-2.4.4-1/index.php:0, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 2. PKPApplication->execute() /data/html/ojs-2.4.4-1/index.php:64, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 3. Dispatcher->dispatch() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPApplication.inc.php:178, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 4. PKPPageRouter->route() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/Dispatcher.inc.php:134, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 5. PKPRouter->_authorizeInitializeAndCallRequest() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPPageRouter.inc.php:220, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 6. call_user_func() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPRouter.inc.php:362, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 7. PluginHandler->plugins() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPRouter.inc.php:362, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 8. PluginRegistry->loadCategory() /data/html/ojs-2.4.4-1/pages/manager/PluginHandler.inc.php:53, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 9. HookRegistry->call() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/PluginRegistry.inc.php:131, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 10. call_user_func() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/HookRegistry.inc.php:89, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 11. TimedViewPlugin->callbackLoadCategory() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/HookRegistry.inc.php:89, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:11 2015] [error] [client 145.94.194.126] PHP 12. PKPPlugin->import() /data/html/ojs-2.4.4-1/plugins/generic/timedView/TimedViewPlugin.inc.php:94, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP Fatal error: Cannot redeclare class TimedViewReportPlugin in /data/html/ojs-2.4.4-1/plugins/generic/timedView/TimedViewReportPlugin.inc.php on line 102, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP Stack trace:, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 1. {main}() /data/html/ojs-2.4.4-1/index.php:0, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 2. PKPApplication->execute() /data/html/ojs-2.4.4-1/index.php:64, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 3. Dispatcher->dispatch() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPApplication.inc.php:178, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 4. PKPPageRouter->route() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/Dispatcher.inc.php:134, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 5. PKPRouter->_authorizeInitializeAndCallRequest() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPPageRouter.inc.php:220, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 6. call_user_func() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPRouter.inc.php:362, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 7. PluginHandler->plugins() /data/html/ojs-2.4.4-1/lib/pkp/classes/core/PKPRouter.inc.php:362, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 8. PluginRegistry->loadCategory() /data/html/ojs-2.4.4-1/pages/manager/PluginHandler.inc.php:53, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 9. HookRegistry->call() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/PluginRegistry.inc.php:131, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 10. call_user_func() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/HookRegistry.inc.php:89, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 11. TimedViewPlugin->callbackLoadCategory() /data/html/ojs-2.4.4-1/lib/pkp/classes/plugins/HookRegistry.inc.php:89, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:52 2015] [error] [client 145.94.194.126] PHP 12. PKPPlugin->import() /data/html/ojs-2.4.4-1/plugins/generic/timedView/TimedViewPlugin.inc.php:94, referer: http://footprint.tudelft.nl/index.php/footprint/manager
[Thu Mar 19 09:59:54 2015] [error] [client 145.94.194.126] ojs2 has produced an error\n Message: WARNING: Cannot use a scalar value as an array\n In file: /data/html/ojs-2.4.4-1/classes/journal/JournalSettingsDAO.inc.php\n At line: 83\n Stacktrace: \n Server info:\n OS: Linux\n PHP Version: 5.3.6\n Apache Version: Apache/2.2.3 (Red Hat)\n DB Driver: mysql\n DB server version: 5.5.13, referer: http://footprint.tudelft.nl/index.php/footprint/user