Well I am certainly no authority, but the same thing happened to me on my first time around at about the same time into flowering while I was attempting to move. I was outdoors but I just wrapped it with masking tape a bunch of times then made a splint like rig and wrapped it some more. Over time it calloused up and eventually ripped the tape on it's own while fattening up. Saw no issues when harvested. I trhink I did a search here and there are a bunch of ideas from other members.