When I tried to log in today, I got this error message.

Could not log in - {" errorcode " :101, " errordesc " : " invalid ticket " }

Does anyone know how to solve it?

this also happened to me i ahve no idea whats happening

There's another post where we're trying to figure it out.

Originally posted by Mo_rang:

When I tried to log in today, I got this error message.

Could not log in - {" errorcode " :101, " errordesc " : " invalid ticket " }

Does anyone know how to solve it?

same here

If you have both a VRChat login and a Steam Login, use your VRChat login. There is something wrong with the Steam login handshake. VRChat is aware of the issue but the problem is on Valve's end. Just login with your VRC credentials.

Edit: Also, if you do not have both a steam and vrchat login, you really should create a VRC login and connect it to your steam account. It gets rid of those 4 letters at the end of your name.
https://help.vrchat.com/hc/en-us/articles/360062659053-I-want-to-turn-my-Steam-Oculus-or-Viveport-account-into-a-VRChat-account

unfortunately I have only the steam account and I didn't convert my steam account to a VR chat account unless I create a new account which I don't want to since I have a list of friends there already that I don't want to disappear.

Originally posted by 𝓐𝓷𝓰𝓮𝓵:

If you have both a VRChat login and a Steam Login, use your VRChat login. There is something wrong with the Steam login handshake. VRChat is aware of the issue but the problem is on Valve's end. Just login with your VRC credentials.

Edit: Also, if you do not have both a steam and vrchat login, you really should create a VRC login and connect it to your steam account. It gets rid of those 4 letters at the end of your name.
https://help.vrchat.com/hc/en-us/articles/360062659053-I-want-to-turn-my-Steam-Oculus-or-Viveport-account-into-a-VRChat-account

If I do that, will I keep my friends and my avatars?