We’re looking into these bugs, which are all caused by the same reason: loss of connection to the server. Problem is, you should get a notification that it happened, so you can reload and all is fixed. Anyway, this is not good enough, we need to fix this issue.
For now, if something weird is going on, a reload will fix — money will be back, lost monsters return etc. all from the point where the disconnection took place. Same goes for tutorial getting stuck.
Sorry for the headache! =/