getting php warning for every min and my error log is fully filled with i..help

[mandi007]

PHP Warning:  explode() expects parameter 2 to be string, array given in /home/*****/*****/public_html/oc-includes/osclass/core/Cookie.php on line 46


my error log is filled with this entry for every min please help me to solve it

[Aficionado]

IF you haven't touched the core code, then it comes from some plugin.

Impossible to know from what exactly, disable one by one and check.