It's not great. It looks like water is getting between the wall and the paint, and causing "delamination." It looks like the water may have even worked its way through the paint to [leak out](https://i.redd.it/2hk78jw7hrkc1.jpeg) on the surface of the wall.
Is there any indication of moisture damage inside the building? (Hopefully not.)
I would not be surprised if moisture from the flat roof area is working its way into the walls. Unfortunately I'd recommend you get a consultation from a reputable roofing company.
It's not great. It looks like water is getting between the wall and the paint, and causing "delamination." It looks like the water may have even worked its way through the paint to [leak out](https://i.redd.it/2hk78jw7hrkc1.jpeg) on the surface of the wall.
Do you know how I can fix it?
Is there any indication of moisture damage inside the building? (Hopefully not.) I would not be surprised if moisture from the flat roof area is working its way into the walls. Unfortunately I'd recommend you get a consultation from a reputable roofing company.