i have a problem in google chrome that has just started and i can not work out why 
i dont think chrome updated 

sometime on page loads i get the awww snap page
sometimes just have a page open and on ping index send to awww snap page 

chrome version
Version 46.0.2490.86 m

error
ow_core_log] [Notice] Message: Undefined index: HTTP_USER_AGENT File: /home/xxxxxxx/public_html/ow_core/request.php Line:158

that reads
return UTIL_Browser::getBrowser($_SERVER['HTTP_USER_AGENT']);