Sleep help..?

My little one is going to be 22 months on the 14th. She is normally a fantastic sleeper, had to transition her out of her crib a month ago because of climbing and she was not comfortable anymore.

After the transition she was doing completely fine sleeping normal, now the last couple weeks she just wakes up screaming and can’t calm her down for about 30 minutes.

Once it’s over she goes back to sleep but it’s been happening at least twice a night and she’s not getting a full night rest

Any advice? Or anyone else same problem?

Naps are normal and fine she sleeps for about 1-2 hours.