They do CGI-Wrapping since 2 weeks and they will not deactivate it. So, this is already a knock-out for running Tiki there, correct?
Yes it will never run correctly
He checked memory_limit and tested it with 40M. Did not work
with cgi-wrapping it doesnt matter what the memory limit is set to, it will always run out.
The error could be connected to browser sessions, but without details from the error.log and the ability to add debugging into the code, I have no idea.