According toCleveland Clinic, this is referred to as onycholysis.
What is Onycholysis?
It may sound scary, but onycholysis is quite common.

There are a few reasons your nails may begin to lift.
It can happen after getting a fungus in your nail, which usually has other symptoms like white spots.
Other reasons onycholysis occurs are due to a reaction to a chemical found in nail polish or acrylic nails.

Certain polish removers and nail glosses can also cause this.
A new, healthy nail will eventually grow back in its place.
If the cause is fungal, there is a bit more work involved.

Your doctor can also prescribe oral and topical antifungal medications to help.
If you love getting them done, have a go at keep themhealthy in between manicure visits.