Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:528 Stack trace: #0 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(528): implode(Array, '|') #1 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(314): MatthiasMullie\Minify\CSS->shortenColors('.sgr-main{trans...') #2 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute(NULL) #3 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(202): MatthiasMullie\Minify\Minify->minify() #4 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(150): WP_Rocket\Optimization\CSS\Combine->minify(Array, '/usr/www/users/...') #5 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(108): WP_Rocket\Optimization\CSS\Combine->combine(Array) #6 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-abstract-minify-subscriber.php(85): WP_Rocket\Optimization\CSS\Combine->optimize('...') #7 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-css-subscriber.php(44): WP_Rocket\Subscriber\Optimization\Minify_Subscriber->optimize('...') #8 /usr/www/users/allpugwbxk/wp-includes/class-wp-hook.php(310): WP_Rocket\Subscriber\Optimization\Minify_CSS_Subscriber->process('...') #9 /usr/www/users/allpugwbxk/wp-includes/plugin.php(205): WP_Hook->apply_filters('...', Array) #10 /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-optimization.php(94): apply_filters('rocket_buffer', '...') #11 [internal function]: WP_Rocket\Buffer\Optimization->maybe_process_buffer('...', 9) #12 /usr/www/users/allpugwbxk/wp-content/plugins/smart-slider-3/Nextend/WordPress/OutputBuffer.php(251): ob_end_flush() #13 /usr/www/users/allpugwbxk/wp-includes/class-wp-hook.php(310): Nextend\WordPress\OutputBuffer->closeOutputBuffers('') #14 /usr/www/users/allpugwbxk/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters('', Array) #15 /usr/www/users/allpugwbxk/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #16 /usr/www/users/allpugwbxk/wp-includes/load.php(1252): do_action('shutdown') #17 [internal function]: shutdown_action_hook() #18 {main} thrown in /usr/www/users/allpugwbxk/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 528