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ErrorException: Class IPS\blog\Application could not be loaded. Ensure it has been properly prefixed with an underscore and is in the correct namespace. (256)
#0 [internal function]: IPS\IPS::errorHandler(256, 'Class IPS\\blog\\...', '/home/newforum/...', 294, Array)
#1 /home/newforum/init.php(294): trigger_error('Class IPS\\blog\\...', 256)
#2 [internal function]: IPS\IPS::autoloader('IPS\\blog\\Applic...')
#3 /home/newforum/system/Application/Application.php(645): spl_autoload_call('IPS\\blog\\Applic...')
#4 /home/newforum/system/Application/Application.php(160): IPS\_Application::constructFromData(Array)
#5 /home/newforum/system/Dispatcher/Front.php(395): IPS\_Application::applications()
#6 /home/newforum/system/Dispatcher/Front.php(89): IPS\Dispatcher\_Front::convertLegacyParameters()
#7 /home/newforum/system/Dispatcher/Dispatcher.php(86): IPS\Dispatcher\_Front->init()
#8 /home/newforum/index.php(13): IPS\_Dispatcher::i()
#9 {main}

#0 /home/newforum/init.php(507): IPS\_Log::log('ErrorException:...', 'uncaught_except...')
#1 [internal function]: IPS\IPS::exceptionHandler(Object(ErrorException))
#2 {main}

http://forum/app=core&module=system&controller=ajax&do=instantNotifications&csrfKey=1dff9ed80559d317d0a4c1fa3561cc6b&notifications=0&messages=0
{"notifications":{"count":"0","data":[]},"messages":{"count":"0","data":[]}}

Проблема не решалось 

Тему можно закрыть.