I think the post above me is also right but also go back to your tutor and explain the situation and I suggest emailing the department of the course that you want the basis on which you got the offer and how the situation was for that year ,
They lowered the boundaries due to covid there’s no way you could’ve got those grades with that going on nicely explain them and see if they consider it coz at the end of the day covid was out of your hands ( before doing so confirm with tutor also mention that you had a chat with the tutor too )
Most importantly take care of yourself and your mental health , don’t let it get to you.
Whatever happens, happens for a reason, I’m sure you can work something out, be patient