The plaster has come off

[thefuse]

Hello,

I was planning to repaint the basement and scraped off the old paint, but the plaster came off in one spot as well.
How should I solve this in the best way?

 

[Stefan N]

New plaster, but have you addressed the moisture problems?

 

[thefuse]

Heard it was the paint that doesn't breathe, that's why it came off.

 

[Krilleman]

How is the drainage?

Downspout in the corner that flows straight into the open?