All the password databases, especially closed source ones, have the problem that backup may be difficult, not verifiable, error prone etc. Storing passwords in the "cloud" may be risky, as lots of companies' servers are getting hacked regularly, some hack events remain unknown.
To solve all these problems, before even they popped up, there was the UNIX password manager : pass (
https://www.passwordstore.org/). Individual passwords are stored in individual files, along with your chosen metadata (user name, URL etc.) all encrypted by PGP. Using a key.
Passwords can be individually used by decrypting. Or can be used by desktop os applications, mobile applications, browser plugins, command line, whatever you choose. Different types of clients are listed here :
https://www.passwordstore.org/#other
There is no "database" to get corrupted or lost. Backing up individual files, all files, PGP keys which encrypt them, is all simple using simple file operations.