Error has taken down backend?

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : x.x.x
-- Joomla version -- : x.x
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

Warning: Creating default object from empty value in /home/mohairbe/public_html/plugins/system/hikashopanalytics/hikashopanalytics.php on line 65

gents and idea's on how to cure this as I cannot access the back end properly?

thanks

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 9372 bytes) in /home/mohairbe/public_html/plugins/system/debug/debug.php on line 1171

got rid of the error message by disabling the google analytics plugin, however cannot now access site manager because of the fatel error (error happened when changing order status?

All sorted.. added memory_limit = 128M and restarted apache

thanks