So my MVP stopped reading all my tanks. When screwed down it would read 0.0 for the ohms. I could back off tank a little by unscrewing an it would read correctly but the tank would then be loose. I tried lifting up the center post of the MVP and that seemed to work for a bit on my mini pro tank 3 but when I try my aerotank and nautilus it doesn't work. Now the mini protank won't work and it looks like a small rubber band under the center post is out. Any ideas or help would be greatly appreciated