I have a problem with the searchform. I can filter on brand ‘Merk’ but not on all other specifications. It only says all ‘alle’. If i check in backend there are different listing connected to the other specifications. If i check in a listing, it says this by some specifications: Warning: Invalid argument supplied for foreach() in /public_html/wp-content/plugins/imithemes-listing/meta-boxes/meta_fields.php on line 7.
If i check this line i see this: foreach($arr as $tab)
I’ve updated theme and plugins to newest version. Also tried disabling all plugins. Both didn’t had any affect.