eroare instalare word press

Nu dati cu pietre … sunt incepator rau de tot

Am un domeniu + hosting si am instalat wordpress pentru a face un blog. Instalarea cred ca am facut-o bine + creat baza de date MySQL.
Cred ca eroarea e din cauza editarii fisierului Wp-config.php (editat cu notepad) dar nu sunt sigur … ma puteti ajuta ???

Dupa instalare apare tema implicita dar cand vreau sa ma autentific imi da eroarea asta dar apar mai jos si campurile pentru autentificare:

Warning: Cannot modify header information – headers already sent by (output started at /home/…/public_html/wp-config.php:1) in /home/…/public_html/wp-login.php on line 354

Warning: Cannot modify header information – headers already sent by (output started at /home/…/public_html/wp-config.php:1) in /home/…/public_html/wp-login.php on line 366

daca trec datele de autentificare imi apar urmatoarele erori:

Warning: Cannot modify header information – headers already sent by (output started at /home/……/public_html/wp-config.php:1) in /home/……/public_html/wp-login.php on line 354

Warning: Cannot modify header information – headers already sent by (output started at /home/……/public_html/wp-config.php:1) in /home/……/public_html/wp-login.php on line 366

Warning: Cannot modify header information – headers already sent by (output started at /home/…../public_html/wp-config.php:1) in /home/……/public_html/wp-includes/pluggable.php on line 693

Warning: Cannot modify header information – headers already sent by (output started at /home/…/public_html/wp-config.php:1) in /home/…/public_html/wp-includes/pluggable.php on line 694

Warning: Cannot modify header information – headers already sent by (output started at /home/…/public_html/wp-config.php:1) in /home/…/public_html/wp-includes/pluggable.php on line 695

Warning: Cannot modify header information – headers already sent by (output started at /home/…/public_html/wp-config.php:1) in /home/…/public_html/wp-includes/pluggable.php on line 897