That's pretty bad if you get an incorrect password while dumping keys.
To be able to dump private keys you must put the exact password that you use before.

If you can't remember the exact password then you can recover the password by using BTCrecovery tool.
You can follow the full guide here https://github.com/gurnec/btcrecover/blob/master/TUTORIAL.md#btcrecover-tutorial

Or try to crack the password by using the John The Ripper.
The guide can be found here Bitcoin2john.py password recovery guide

Or use a recovery service like https://walletrecoveryservices.com/
I don't know if they are safe but most of the trusted users here on the forum telling that walletrecoveryservices.com is legit.