I was playing on a Hardcore server when I fell off the shore and broke my leg in water. I tried to walk back to the shore but I suddenly died and the respawn button was gray so I couldn't respawn. I tried logging off and on and I was spawned in the same place (underwater) but alive. After 10 seconds of trying to move I died again and Respawn is still gray. Please, I need help because I am unable to play.

P.S.: The caracther is not swimming, he is crawling underwater.