Originally Posted by Scof1212
Also yes I did replace the breaker. And it is not possible to split it. It is the last open space on the main panel.
If you've replaced the breaker and gotten the same result, then I would conclude the load is probably above 80A RMS and your meter is not displaying it properly. You'll need to measure the actual load, or at the very least add up the current ratings of all the devices on the circuit. You'll probably need a feeder and breaker rated for more than 100A, since your existing load seems to be more than 80% of that already.