500 Internal Server Error

Technical details:
Error: Not array - for
***  in function "array_has_key"
***  line: if ({L2} = {L1}) then...endif
***  call: array_has_key (0, "id")
***  call: _MA_FIND_CRM_get_item_data_path (0, "id")
***  call: _MA_FIND_CRM_map_item_data (0, [TABLE], ["id", "slug", "title", "organisation", "standfirst", "startDate", "endDate", "venueNL", "logo1"])