A PHP Error was encountered

Severity: 4096

Message: Argument 1 passed to smart_filter\src\Filter\Filters\PropertiesFilter::combinePropertyValues() must be of the type array, null given, called in /home/admin/www/deeremanuals.com/application/modules/smart_filter/src/Filter/Filters/PropertiesFilter.php on line 230 and defined

Filename: Filters/PropertiesFilter.php

Line Number: 248