Blank WordPress Admin Login Screen

Hello,

After updating to WordPress 4.8 a day ago my login screen is blank.

I receive this error:
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/joviehos/public_html/wp-config.php:1) in /home/joviehos/public_html/wp-content/themes/gameworld/functions.php on line 37 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/joviehos/public_html/wp-config.php:1) in /home/joviehos/public_html/wp-content/themes/gameworld/functions.php on line 37



Any ideas on this?

Thanks,
Paul

Hi!
Probably, your wp-config.php file echos some content into browser. Could you check it wether there is some "echo" function or perhaps any blank line after closing "?>" php tag?