cannot login to admin area

what happened is I was sorting out my sql databases (i created many different ones trying to install a new wp). By error I deleted the user for my current wp blog, and my main page disapeared.
The database was still there, so I created another user and linked it to wp database. I also modified the “wp-config” file. Now the blog page shows, except that I cannot log in anymore. it shows:

Warning: Cannot modify header information – headers already sent by (output started at /home/exileds/public_html/blog/wp-config.php:34) in /home/exileds/public_html/blog/wp-login.php on line 257
Warning: Cannot modify header information – headers already sent by (output started at /home/exileds/public_html/blog/wp-config.php:34) in /home/exileds/public_html/blog/wp-login.php on line 258
Warning: Cannot modify header information – headers already sent by (output started at /home/exileds/public_html/blog/wp-config.php:34) in /home/exileds/public_html/blog/wp-login.php on line 259
Warning: Cannot modify header information – headers already sent by (output started at /home/exileds/public_html/blog/wp-config.php:34) in /home/exileds/public_html/blog/wp-login.php on line 260
Warning: Cannot modify header information – headers already sent by (output started at /home/exileds/public_html/blog/wp-config.php:34) in /home/exileds/public_html/blog/wp-login.php on line 261

I am confused. Please help! Is there something I didn’t do? I’m completely clueless
*edit*
I also found the wp-login.php file to see if anything was wrong there, and I can’t even understand what’s all written 🙁 I realised there was another wp-config file in the “wp-admin” folder and I modified it asll well. but still nothing 🙁