Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:518 Stack trace: #0 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(518): implode(Array, '|') #1 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(311): MatthiasMullie\Minify\CSS->shortenHex('img.wp-smiley,i...') #2 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute(NULL) #3 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/functions/minify.php(474): MatthiasMullie\Minify\Minify->minify() #4 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(212): rocket_minify_inline_css('\nimg.wp-smiley,...') #5 [internal function]: Minify_HTML->_removeStyleCB(Array) #6 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(110): preg_replace_callback('/\\s*...') #7 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(48): Minify_HTML->process() #8 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/front/minify.php(74): Minify_HTML::minify('...', Array) #9 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/class-wp-hook.php(292): rocket_minify_html('...') #10 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/plugin.php(212): WP_Hook->apply_filters('...', Array) #11 /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/inc/front/process.php(267): apply_filters('rocket_buffer', '...') #12 [internal function]: do_rocket_callback('...', 9) #13 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/functions.php(4757): ob_end_flush() #14 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/class-wp-hook.php(292): wp_ob_end_flush_all('') #15 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters('', Array) #16 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #17 /customers/9/5/9/fonia.dk/httpd.www/wp-includes/load.php(1072): do_action('shutdown') #18 [internal function]: shutdown_action_hook() #19 {main} thrown in /customers/9/5/9/fonia.dk/httpd.www/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 518