Hello,
How do I fix this error?
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'woocommerce_price_filter' not found or invalid function name in ..\wp-includes\plugin.php on line 199
&
Warning: array_unique() expects parameter 1 to be array, null given in ..\wp-content\plugins\woocommerce\includes\class-wc-query.php on line 353
