Errore apertura sito

Ragazzi stavo cercando di installare sh404sef ora mi appare questo errore quando cercado di parire il sito:

Codice:

Fatal error: Uncaught exception 'LogicException' with message 'Passed array does not specify an existing static method' in /membri/cinemavip/plugins/system/shsef.php:202 Stack trace: #0 /membri/cinemavip/plugins/system/shsef.php(202): spl_autoload_register(Array) #1 /membri/cinemavip/plugins/system/shsef.php(45): plgSystemShsef->_registerAutoloader() #2 [internal function]: plgSystemShsef->onAfterInitialise() #3 /membri/cinemavip/libraries/joomla/event/event.php(67): call_user_func_array(Array, Array) #4 /membri/cinemavip/libraries/joomla/event/dispatcher.php(170): JEvent->update(Array) #5 /membri/cinemavip/libraries/joomla/application/application.php(502): JDispatcher->trigger('onAfterInitiali...', NULL) #6 /membri/cinemavip/index.php(45): JApplication->triggerEvent('onAfterInitiali...') #7 {main} thrown in /membri/cinemavip/plugins/system/shsef.php on line 202