Defender plugin gives me a white screen!

Hi.

I have tried quite a few times in the past to load fender to http://www.web-me.at!

It always gives me a ‘white screen’!

I tried again today. Same outcome!

Deleted it via server control panel.

I learned a little while ago (from a support ticket with yourselves) that my ‘Theme Header’ does not “conform to current protocols!!!

So today I am wondering if this may be the reason!

Any ideas, please?

Regards

John