I know that the title of the subject seems to be (again a noob that can't remember his password) but if it was so simple, i liked ;)
So here is my bug :
When i try to paste my password from my password manager to start the application (cobian backup 11 gravity - 188.8.131.522), it opens the window of the repository of the log files.
When i "write" my password, i have the full access to Cobian.
To be honnest, i liked to avoid to write my password, and be able to just paste it (20 chars - lower/upper case and digits is a little long)