UPD:
If it is interesting for someone. It was the license problem. It was solved by Ruckus ingeneer in ticket. It was fixed by redact the MySQL database. As far as I understood my mistake was in installation procedure - I did not execute this recomendation: "If your Linux server contains an instance of MySQL before FlexMaster installation, then that MySQL instance and all dependent packages must be uninstalled before initializing FlexMaster nstallation."