Totalspaces not working anymore

I cannot use Totalspaces anymore. It seems that there are 16 desktops confgured, but it’s not possible to add rows or colums (no error, but also no action). What’s going on there?

See screenshot for Details.
Thank you

solved by reinstalling. but this seems to happen after some time because it happenend 1 month ago… tell me if i can provide something if it happens again.