It looks like they have stored honey on the tops of the frames- which would indicate they are expanding rapidly and crowded down below. Many hives have extra space above the frames (hives with migratory lids) and bees build up there when they run out of room below- it’s a sure sign they are doing well and are maybe ready for a super to go on top.
You will want to clean everything up and the sooner you do it the better. Use your smoker to clear the bees from areas you want to clean- you can scrape all that wax and honey off the top of the frames using your hive tool.
It is going to be a messy and difficult job I am afraid.If you have access to any experts getting a helping hand when you go to do it would be great.
there is some information about how to go about it on another recent thread: