The path which stores your account database credentials is different than bot's directory and also not related to the registry.
You can modify that data at: (WINDOWS DRIVE):\Users\(YOUR USER)\AppData\Roaming\SBot
WINDOWS DRIVE is usually C and YOUR USER is usually your PC account name, however it might be different for you.
Just delete the whole folder (SBot) and your database password will be reset.
Note that you'll unfortunately lose all previously stored account information as well by doing this, but I'm assuming that's not something you're worried about.
If you chose to encrypt the password originally when you first created it, it will be stored as hashed data in global.ini file. In the cracked SBot you're using, it uses MD5 hash. In the latest official SBot (idk when the change was made), it uses SHA1 hash.
Either way, if the password is very common, you may be able to find it by copypasting the hash into a decryptor site. This way you could avoid losing your data.
Good luck.
The path which stores your account database credentials is different than bot's directory and also not related to the registry.