Well I have some mods installed.I got the game from a friend.he had it on a usb and he installed it.The first time it gave me a error where I couldn't join a singleplayer world saying that my name contains characters not allowed.He showed me that he edited a file in appdata something having to do with client and put in a random name as something with a id.He was the one who done all that stuff so idk.I can acces the file and take a screenshot.
clientsettings.json