camera feed

I've recently had to repair a few elements of my gimbal due to a crash. All seemed okay yesterday, gimbal was stable and camera was working all as should be. However, today I went for a flight and got no camera feed, just a black screen with a dji logo in the center. No matter how many times...

New drone, Im new to this too ... tried it on 3 flights of about 10 mins, worked fine, tried to land on a table, it crached to the floor ... Since then; 1. The RC will not connect, tried all the recommendations on uTube, on the RC one light is red, the others geen, I appreciate the green ones...