Error in the login area

https://www.topjovem.com.br/wp-login.php
look at this error I tried everything until I updated wp ja and continues with the same problem and not doing this in when I log these errors appears

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-login.php on line 290

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-login.php on line 302

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-includes/pluggable.php on line 662

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-includes/pluggable.php on line 663

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-includes/pluggable.php on line 664

Warning: Cannot modify header information – headers already sent by (output started at /home/topjovem/public_html/wp-config.php:1) in /home/topjovem/public_html/wp-includes/pluggable.php on line 865

how can I fix it?