Fatal error: Uncaught TypeError: implode(): Argument #1 ($separator) must be of type string, array given in /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:528 Stack trace: #0 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(528): implode() #1 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(314): MatthiasMullie\Minify\CSS->shortenColors() #2 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute() #3 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-html-subscriber.php(90): MatthiasMullie\Minify\Minify->minify() #4 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(212): WP_Rocket\Subscriber\Optimization\Minify_HTML_Subscriber->minify_inline_css() #5 [internal function]: Minify_HTML->_removeStyleCB() #6 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(107): preg_replace_callback() #7 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(48): Minify_HTML->process() #8 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-html-subscriber.php(77): Minify_HTML::minify() #9 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/class-wp-hook.php(324): WP_Rocket\Subscriber\Optimization\Minify_HTML_Subscriber->process() #10 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/plugin.php(205): WP_Hook->apply_filters() #11 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-optimization.php(94): apply_filters() #12 [internal function]: WP_Rocket\Buffer\Optimization->maybe_process_buffer() #13 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/functions.php(5464): ob_end_flush() #14 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/class-wp-hook.php(324): wp_ob_end_flush_all() #15 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #16 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/plugin.php(517): WP_Hook->do_action() #17 /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-includes/load.php(1279): do_action() #18 [internal function]: shutdown_action_hook() #19 {main} thrown in /data/web/e29928/html/Kunden/koelbl.co.at/live/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 528