If you lose access to your local Unimus instance, you can reset the password to any user accounts by changing it in the database.
You can generate a BCrypt password hash and insert it into the database for the user you wish to reset the password for.
To generate the password hash, you can any online BCrypt hash generator, or generate the hash yourself.
For example, we have tested with this online hasher: https://www.dailycred.com/article/bcrypt-calculator
In the database, you will find a SYSTEM_ACCOUNT table.
In this table, you will find each user of the system, and you can change the hash in the PASSWORD row for the necessary user.
To check which database your Unimus instance uses, check the configuration files.
Windows:
C:\ProgramData\Unimus\unimus.properties
Linux:
/etc/unimus/unimus.properties