I having trouble updating my version of wordpress. When I try to auto-update, I get this error:
Warning: copy(/homepages/22/d366503813/htdocs/app366503818/wp-admin/includes/update-core.php) [function.copy]: failed to open stream: Permission denied in /homepages/22/d366503813/htdocs/app366503818/wp-admin/includes/class-wp-filesystem-direct.php on line 200
Then, when I attempt to do it manually, I can't delete the respective files (wp-includes, wp-admin, etc.) For some reason I don't have the right permissions to do this. When I try to alter the permissions on my host, nothing happens. I'm doing this with 1&1.
Any help and/or pointers would be greatly appreciated. Thank you!