Fatal error: Uncaught Error: Call to undefined function add_filter() in \\NAWINFS03\HOME\users\web\b1931\rh.angelhouse\wp-includes\default-filters.php:17
Stack trace:
#0 {main}
thrown in \\NAWINFS03\HOME\users\web\b1931\rh.angelhouse\wp-includes\default-filters.php on line 17