SQL database repair

Hi all. I´ve configured a FL100 and I want to repair database. I Follow this steps: 1- Change logs mode from standalone to collector 2- Disable sql database 3- remove database: execute sql-local remove-db All from cli. But i can not enable database again: 1- Change collector mode: config system global set log-mode standalone end say: start sql database failed. Command fail. Return code -39 2- Start local database: config system sql set status local end say: Do not allowed enable SQL in collector mode. object set operator error, -254 discard the setting Command fail. Return code -254 I cannot change to standalone mode without database and cannot enable database in collector mode. What can i do? Thank you in advance.