After you file

So my tax return was accepted and they took what they said I owed.  However, I have to amend.  When I log online to amend - and it states click here to amend the 2021 return - It sends me back to my TAX expert that did my taxes.  I messaged them from there.  Do I wait for a response?  I have no clue what to do?  Not having someone physically talk to is frustrating since I don't know what to do?  Need help / guidance?