Email is neither received nor sent.

I fixed the zone_editor. I installed CWP on virtual machine and just got the file from there. Now it works.

Now only left someone to help me fix the email problem, which i can't do alone.

Regards

Zone editor is just a PHP front end for BIND. But your error seems to indicate that the PHP file itself is corrupt, perhaps due to an incomplete update. You may have to re-apply the last CWP update or try applying a beta version to see if that fixes it.