???
Ground it to your antenna bracket and re-test the SWR.
That is what I did with my 4 ft Wilson Silver Load.
Surprised you didn't do that in the first place!
Well I did, just like the instructions said, but SWR went up, so I left it off. Again, I'm only using the meter in the radio, but SWR is at 1:1, maybe 1:2.