Recently active topics in Wuala tagged with group

I tried to post a file to a group, by right clicking on it and choosing 'Add to group'. Then i received following pop-up message:

'com.wuala.domain.meta.storage.transaction.exception.TransactionExecutionException: 110 (zB)
Cause: 110 (zB)'

From that time, when I try to change local access rights, I receive a po-up window called 'Transaction 110 failed!' with text '110 (zB)' only.

I get an error "The group could not be created" after trying to get secure group keys or something. My friend who just signed up got the same error.

When I open a file,windows says I don't have acess! Pic after I doubble click the icon, http://img171.imageshack.us/img171/20... ,pic after I click run, http://img230.imageshack.us/img230/10...