Hi i've been enjoying the mod for a while now and I was wondering why i cant seem to join the server.

It keeps saying that It failed to verify my username

Is it because im using Tlauncher?

Do i need to get the actual game???

Please anyone help me

Yes, the TLauncher/MCLeaks Platforms don't really provide a proper login or account that is premium, with TLauncher, you are probably only able to join cracked servers, such as maybe private ones.