I can't update or install any apps anymore. How can I?

A

AC Question

I had a school account that ran on a school server. I had logged into it on my phone in order to do some school work year previous to now. Just recently, I graduated and the school deleted the account and everything on it. Now, when I try to go on the google play store it prompts me to log into that account and says that "a change in [my] account requires that sign in again." Obviously, I cannot sign in to that account because it no longer exists. Also, I cannot create that account again because it exists on a domain that I do not have access to anymore. I have tried to go into my settings, accounts, google, but it crashes and gives me the "unfortunately, settings has stopped" message. Any help is appreciated, thank you.