Fatal error: Uncaught Error: Class "PKPUsageEventPlugin" not found in /home/wwuic/psicologiayeducacion.uic.mx/plugins/generic/usageEvent/UsageEventPlugin.inc.php:18
Stack trace:
#0 /home/wwuic/psicologiayeducacion.uic.mx/plugins/generic/usageEvent/index.php(18): require_once()
#1 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/plugins/PluginRegistry.php(259): include('/home/wwuic/psi...')
#2 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/plugins/PluginRegistry.php(193): PKP\plugins\PluginRegistry::_deprecatedInstantiatePlugin('generic', 'usageEvent')
#3 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/plugins/PluginRegistry.php(219): PKP\plugins\PluginRegistry::_instantiatePlugin('generic', 'usageEvent', '')
#4 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/plugins/PluginRegistry.php(112): PKP\plugins\PluginRegistry::_loadFromDatabase('generic', NULL)
#5 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/core/Dispatcher.php(155): PKP\plugins\PluginRegistry::loadCategory('generic', true)
#6 /home/wwuic/psicologiayeducacion.uic.mx/lib/pkp/classes/core/PKPApplication.php(395): PKP\core\Dispatcher->dispatch(Object(APP\core\Request))
#7 /home/wwuic/psicologiayeducacion.uic.mx/index.php(21): PKP\core\PKPApplication->execute()
#8 {main}
thrown in /home/wwuic/psicologiayeducacion.uic.mx/plugins/generic/usageEvent/UsageEventPlugin.inc.php on line 18