Outage when installing Magma repositotory

I have installed the latest MagmaServerLoader on Squeak image 3.9. When creating a repository with:

controller := MagmaRepositoryController create: '/home/hilaire/Travaux/these/iFichier/Squeak-these/MagmaDB' root: Dictionary new

I got the following warning: ----- Outage occurred while writing system-definitions! Will now attempt to repair.

Select Proceed to continue, or close this window to cancel the operation. -------

However the MagmaDB folder contains the following files:

-rw-r--r-- 1 hilaire hilaire 98 2006-10-06 16:58 applied.images -rw-r--r-- 1 hilaire hilaire 84068 2006-10-06 16:57 commitPackages -rw-r--r-- 1 hilaire hilaire 30983 2006-10-06 16:57 objects -rw-r--r-- 1 hilaire hilaire 3205 2006-10-06 16:58 objects.idx