@Google Maps plugin
I am here following a conflict detected with Polylang. See https://wordpress.org/support/topic/error-on-olt-managerphp-on-line-110 . It seems that in some cases, you pass an array to the method
langGmp::_($name) . At least it is the case for this array:
Array (  => Module  => options  => method  => checkStatistic  => undefined )
But written as it is currently in 0.5.1.3, the method is an alias of the function __() which cannot handle arrays. This may cause conflicts with plugins using the 'gettext' filter which expect a string and not an array. Also your strings will of course not be translated.