i have little experience with php/sql/webdev and nearly no experience with wordpress. A friend of mine has a wordpress-blog plus database on host-europe.com
She recently changed (quote) "some URLs on the wordpress admin page". Since then the following error occurs on page load:
Fatal error: Call to undefined function get_header() ...
The admin-page is also unreachible (i managed to get to the admin-login page, but could not log in), so we can not revert these changes the usual way.
Can somebody help solving this issue? :)
(There are tons of posts concerning this error, but on 12 pages of results i couldn't find one that fits)