error message says that my account is not registred

jmparejaz

I am trying to get not assited remote control for a computer that i have been working the past 2 years with teamviewer without any problem, today it started showing me an error message that says "watiforconnectfailed" however the pc is log in. Right now teamviewer started showing me another error, it is only avialable to log in with the management console, because i try to log with the windows exe and i shows me another error message that my account doesnt exist

please someone can help me I need to finish my thesis ASAP