Fatal error: Uncaught Error: Call to undefined function Smush\Core\Parser\str_contains() in /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-parser.php:373 Stack trace: #0 /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-parser.php(358): Smush\Core\Parser\Parser->sanitize_value('rel') #1 /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-parser.php(157): Smush\Core\Parser\Parser->is_safe('rel') #2 /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-parser.php(120): Smush\Core\Parser\Parser->get_element_attributes('<link rel="icon...', 'https://papkopp...') #3 /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-page-parser.php(35): Smush\Core\Parser\Parser->get_elements_with_image_attributes('<!DOCTYPE html>...', 'https://papkopp...') #4 /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/transform/class-transformer.php(53): Smush\Core\Parser\Page_Pars in /var/www/papkopper.dk/public_html/wp-content/plugins/wp-smushit/core/parser/class-parser.php on line 373