Error 500 help aub

Ik kan helaas niet inloggen op mijn wp site. Error 500.

HTTPaccess file heb ik vervangen
Plugins uitgezet
PHP memory verhoogd
wp-admin en WP-includes vervangen (Toen ging het echt goed fout!)

Debug geeft volgende aan:

Deprecated: Function get_magic_quotes_gpc() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/load.php on line 583 Deprecated: Function create_function() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/pomo/translations.php on line 208 Deprecated: Function create_function() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/pomo/translations.php on line 208 Deprecated: Function create_function() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/pomo/translations.php on line 208 Deprecated: Function get_magic_quotes_gpc() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/formatting.php on line 3779 Deprecated: Function get_magic_quotes_gpc() is deprecated in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/formatting.php on line 3779 Warning: Cannot modify header information – headers already sent by (output started at /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/load.php:583) in /mnt/web418/b0/46/56888846/htdocs/www.beatthecolour.nl/wp-includes/pluggable.php on line 1206

Wie kan me adviseren hoe ik dit op kan lossen?
Site is nog on-line beschikbaar.

Bedankt

De pagina waar ik hulp bij nodig heb: [log in om de link te zien]