Coleman Procat propane catalytic heater

I got Procat for last years snow trip and have since lugged it late night fishing and early-morning bird watching, it's a great appliance...

But now it wont turn on and I am finding an oily substance inside the gas fittings.
When I turn the gas dial there isn't isnt the familiar little hiss i've become used to.
When the gas hose is connected to a bottle and I press the little button inside the gas hose fitting there is a hiss but there is also some foamy oil that seems to go waxy before dissapiating.

Is it possible the oily stuff has clogged up my valve? and are the valves repairable?