Forum error on PM, Email and Signature

Hi!
This forum has a new bug. When I want to send a PM, email (thru forum) or edit signature I get error. But only when you type some longer text, above app. 60 characters.

Code:

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Forbidden
You do not have permission to access this document.

Web Server at typolight-community.org

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We are going to move the forum to another web host soon.

Good idea :)

After weeks and months of dissatisfaction and almost no support by the hosting company, we have finally moved the forum to another provider. Hopefully, this will solve most of the issues. If you are still experiencing problems, please report them in this thread.

Wow, already much faster. A complete new UX. :)

Thx a lot.

Ou yeah, no more "site is not responding" :)