UserManager users corrupt.

Hi folks.

I have a RB1100AX router running UserManager for authenticating users in hotspot.
Whenever, sometimes when the power distruption ocurr the usermanager database don’t recognize certain users, I think the database is corrupt.
¿How can repair the users corrupts, there are a command for reindex o repair the database?

Thank you for reading.

same problm . i dont know what what is problm . new update after i start this problm .