[02-Dec-2020 10:04:20 Europe/Athens] PHP Warning: implode(): Invalid arguments passed in /home/queenhouse/public_html/administrator/components/com_virtuemart/models/product.php on line 1355
Seems public function loadProductPrices($productId,$virtuemart_shoppergroup_ids,$front)
expects the $virtuemart_shoppergroup_ids to be array, so consider to add on begging this line of code
if(!is_array($virtuemart_shoppergroup_ids)) $virtuemart_shoppergroup_ids=array($virtuemart_shoppergroup_ids);
version please