When logged in, inspect the iframe src parameter "al-password", this is what it's sending to the lounge client. I think yours should be or was the old default "magnora7". This password is locked to the username the first time it is used and can't be changed.. ill have to improve the docs or make the IRC password field read only.

If you did change the password, after changing it back you probably have to run sudo reddit-flush which flushes all caches and will make the template/iframe use your updated password.

We can manually reset irc client accounts too if we need to, but there's only a command line interface for that... you can start over for your account by deleting ~/.lounge/users/magnora7.json

(at which point the first password sent is the new password)