How to get someone to stop apologizing

I know someone exactly like this. Just sit down and have a friendly chat. Just tell them unless they make a mistake that inconveniences you, that they dont have to apologize.

But instead of being a person giving a command. Present and speak as an ally. People work best when they feel like they have someone who they can trust. Ask them where it comes from and what can they do about it and what you can do to help.

This is a hard wired tick so be patient. If they say sorry 50 times a day and say it the next day only 49 times, it's a success. Don't expect it to completely disappear in a small time frame. Work with them.

"I want you to listen carefully; whilst I don't want you to get upset, or think of anything other than what I'm saying to you. I neither need nor want you to apologies for something that's been and gone, that's already been apologised for. I've forgotten about it, I need to put it in my past (as do you) but you insist that I continue taking the same apology. For your sake (more than for mine) you need to let it go. And so ... Can we say that's the last we hear of it?"

Tell them if they don't stop apologizing you'll be angry about that. Lol then hope they don't start apologizing for apologizing to much.