[TYPO3-project-seminars] Error at installation

[Typo3 News-Groups]

I have also installed:
------------------------
Typo3 4.2.1

ameos_formidable 0.7.0

static info_tables 2.0.1

oelib 0.4.1

-------------------------------
If I install seminars 0.6.1  Frontend and Backend don't work.