Trying to amend my 2021 taxes but an error page keeps popping up saying try again in a few minutes

I have a similar issue with the investor center. The problem appears to be that TurboTax's use of tracking scripts breaks their sites. As a workaround, you can try disabling ad-blocker or try a different browser.

Also try closing TurboTax, clear your Cache and Cookies, and reopen TurboTax.   

If you still have problems, please call TurboTax Customer service.  Here is a link:  Turbo Tax Customer Service