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Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php:528 Stack trace: #0 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(528): implode(Array, '|') #1 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php(314): MatthiasMullie\Minify\CSS->shortenColors('img.wp-smiley,i...') #2 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/Minify.php(111): MatthiasMullie\Minify\CSS->execute(NULL) #3 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-html-subscriber.php(90): MatthiasMullie\Minify\Minify->minify() #4 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(227): WP_Rocket\Subscriber\Optimization\Minify_HTML_Subscriber->minify_inline_css('\nimg.wp-smiley,...') #5 [internal function]: Minify_HTML->_removeStyleCB(Array) #6 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(118): preg_replace_callback('/\\s*<style(\\b[^...', Array, '<!DOCTYPE html>...') #7 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/vendors/classes/class-minify-html.php(48): Minify_HTML->process() #8 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/classes/subscriber/Optimization/class-minify-html-subscriber.php(77): Minify_HTML::minify('<!DOCTYPE html>...', Array) #9 /home/eliteinstitute/public_html/wp-includes/class-wp-hook.php(310): WP_Rocket\Subscriber\Optimization\Minify_HTML_Subscriber->process('<!DOCTYPE html>...') #10 /home/eliteinstitute/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('<!DOCTYPE html>...', Array) #11 /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/inc/classes/Buffer/class-optimization.php(104): apply_filters('rocket_buffer', '<!DOCTYPE html>...') #12 [internal function]: WP_Rocket\Buffer\Optimization->maybe_process_buffer('<!DOCTYPE html>...', 9) #13 /home/eliteinstitute/public_html/wp-includes/functions.php(5349): ob_end_flush() #14 /home/eliteinstitute/public_html/wp-includes/class-wp-hook.php(310): wp_ob_end_flush_all('') #15 /home/eliteinstitute/public_html/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #16 /home/eliteinstitute/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #17 /home/eliteinstitute/public_html/wp-includes/load.php(1252): do_action('shutdown') #18 [internal function]: shutdown_action_hook() #19 {main} thrown in /home/eliteinstitute/public_html/wp-content/plugins/wp-rocket/vendor/matthiasmullie/minify/src/CSS.php on line 528