Confict with Advanced Ads

Hi, We use Advanced Ads plugin, and need to use the Group Ads functionality, Group Ads cannot be shown on Category Pages where we need them to be targeted, my developer found the conflict, can you help, this actually breaks the whole purpose of the website which is to sell advertising!

“geo-directory events” plugin conflict the ad group widget

If I disable “geo-directory events” plugin then the ads are showing on category pages

wp-content/plugins/geodir_event_manager/includes/class-geodir-event-schedules.php
line No: 539
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public static function event_type_condition( $event_type, $alias = NULL, $date = ” ) { }
this function conflicting with “ad group”