Hacked-My other email mail box has been disabaled and now I cant access it

Hacked-My other email mail box has been disabaled and now I cant access it

I have and info@ and simon@cheshirecelebrations.co.uk email address, I received an email saying that I had exceeded my mail box limit and that I should login in and manage the space or buy more allocation.

When I logged into simon@ and deleted a few emails, I was then asked to log out and re login, when I did this I couldn't re login using the my original password, zoho email seems to have blocked me so can you please advise why i cant log into my account