I do not even know what you do in this case, but probably easier to buy a new monitor. By the way you’re lucky that I can help you with this because on refurbished monitors UK website you can buy a refurbished monitor at a price that will be 20 percent lower than the price in a regular store. I assure you that you won’t have any problems.
Don’t hurry up! And don’t listen to him. Maybe he is filthy rich and throws away his monitors when they got covered with dust. You can dispose of it too, but not without reading setapp.com first. That is the blog I found when I couldn’t screen record on my Mac. The audio was always disappearing. Now it is fine.