Someone on psx-scene found out it is a hypervisor problem because it is patched. He found witch option to disable in MFW to stop the error.
Big problem is however graf his utils won't work anymore. The multiboot stays so for people only interested in Linux and not in the dev options graf his utils offer it is a solution.
Wanted to look into it yesterday but they were off-line for maintenance and still are. To lazy to use google with cache to find the page. I'll wait till they get back online.
A computer once beat me at chess, but it was no match for me at kick boxing ...