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Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:528 Stack trace: #0 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(528): implode(Array, '|') #1 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(314): MatthiasMullie\Minify\CSS->shortenColors('@charset "0";.w...') #2 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute(NULL) #3 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(223): MatthiasMullie\Minify\Minify->minify() #4 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(171): WP_Rocket\Optimization\CSS\Combine->minify(Array, '/is/htdocs/wp13...') #5 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/inc/classes/optimization/CSS/class-combine.php(110): WP_Rocket\Optimization\CSS\Combine->combine(Array) #6 /is/htdocs/wp13429113_QUBQDFH7ZQ/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 /is/htdocs/wp13429113_QUBQDFH7ZQ/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 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/class-wp-hook.php(307): WP_Rocket\Subscriber\Optimization\Minify_CSS_Subscriber->process('<!DOCTYPE html>...') #9 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/plugin.php(191): WP_Hook->apply_filters('<!DOCTYPE html>...', Array) #10 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-optimization.php(94): apply_filters('rocket_buffer', '<!DOCTYPE html>...') #11 [internal function]: WP_Rocket\Buffer\Optimization->maybe_process_buffer('<!DOCTYPE html>...', 9) #12 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/functions.php(5277): ob_end_flush() #13 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/class-wp-hook.php(307): wp_ob_end_flush_all('') #14 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #15 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #16 /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-includes/load.php(1102): do_action('shutdown') #17 [internal function]: shutdown_action_hook() #18 {main} thrown in /is/htdocs/wp13429113_QUBQDFH7ZQ/www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 528