Im currently working flare line. The problem is expansion overstress on the branch which is unreinforced tee. I cannot change routing because we're now in the latter part of the project. I made an honest human mistake in the input of the sif before. I input welding in sif instead of unreinforced tee. Im a new stress engineer, but I know this not an excuse. Im really stressed right now and don't know what to do. Please please help me.

PS: We are not allowed to use reinforcing pads in branches.