Put it through to te author of the mod. Got luckily my save working again by disabling refined storage in a copy of the save. This destroys all processes wich Refined Storage was doing. Re-enabled Refined Storage again (in an older version) in that save and it works again (only without the Refined storage blocks (because those were deleted in the load without Refined Storage), but that is easily salvageball).
Thank you anyway for the version-change suggestion, Should have thinked about that one.....