Unlocking the lever handle empty lock of the dressing room

"I tried to fix it myself, but the door wouldn't open."

There was no lever on the door of the room we were guided to.When I heard it, it seems that I took it off myself, but I can't do anything anymore.

When I looked, the lever had been removed to the side.Unlocking went smoothly, but the latch part of the tubular was damaged.It looks like you will be doing the replacement yourself.I hope you get well.