Help me please :(((

Hi… I can’t get to y dashboard today… I’m getting the error

Warning: Cannot modify header information – headers already sent by (output started at /home/ngngo/public_html/wp-settings.php:332) in /home/ngngo/public_html/wp-includes/pluggable.php on line 934

But I didn’t change anything since my last update (that was yesterday)… What should I do now:(