Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:518 Stack trace: #0 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(518): implode(Array, '|') #1 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(311): MatthiasMullie\Minify\CSS->shortenHex('html{font-famil...') #2 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute(NULL) #3 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(201): MatthiasMullie\Minify\Minify->minify() #4 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(150): WP_Rocket\Optimization\CSS\Combine->minify(Array) #5 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(108): WP_Rocket\Optimization\CSS\Combine->combine(Array) #6 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-abstract-minify-subscriber.php(85): WP_Rocket\Optimization\CSS\Combine->optimize('<!DOCTYPE html>...') #7 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-css-subscriber.php(44): WP_Rocket\Subscriber\Optimization\Minify_Subscriber->optimize('<!DOCTYPE html>...') #8 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/class-wp-hook.php(303): WP_Rocket\Subscriber\Optimization\Minify_CSS_Subscriber->process('<!DOCTYPE html>...') #9 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/plugin.php(189): WP_Hook->apply_filters('<!DOCTYPE html>...', Array) #10 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/inc/front/process.php(358): apply_filters('rocket_buffer', '<!DOCTYPE html>...') #11 [internal function]: do_rocket_callback('<!DOCTYPE html>...', 9) #12 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/functions.php(5107): ob_end_flush() #13 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/class-wp-hook.php(303): wp_ob_end_flush_all('') #14 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters('', Array) #15 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #16 /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-includes/load.php(1097): do_action('shutdown') #17 [internal function]: shutdown_action_hook() #18 {main} thrown in /home/clients/ede2b5f3dd413f995e48cc79cd6a57f7/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 518