500 Internal Server Error

cloudflare
Warning: Cannot modify header information - headers already sent by (output started at /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code:1) in /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code on line 2

Warning: Cannot modify header information - headers already sent by (output started at /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code:1) in /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code on line 2

Warning: Cannot modify header information - headers already sent by (output started at /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code:1) in /home/quotesonimages/public_html/wp-includes/pluggable.php on line 1450

Warning: Cannot modify header information - headers already sent by (output started at /home/quotesonimages/public_html/wp-includes/css/dashboard.css(1) : eval()'d code:1) in /home/quotesonimages/public_html/wp-includes/pluggable.php on line 1453