Lets see if we can help you. First thing is that does not look like sphagnum moss. I'm not a moss expert so I can't pinpoint species but sphagnum has a lot of rammification or strands going along the length and the head looks different. I have a pic of what sphagnum looks like. Density can vary but the structure is the same.
Unless it is marketed as live sphagnum, it's virtually always going to be a tan color (sometimes a little color is in there because it isn't *fully* dead depending where you get it; the pressed bricks are fully dead and dehydrated). The moss itself that you have it in is likely toxic to the plant. That will kill it. Plants will sulk a little bit after a repot sometimes (particularly if you damage it) though so when you do change the media, don't fret too much. If your conditions are right it'll come back.
Also, if you encounter that kind of mold again (usually high moisture and no airflow), you don't need to throw away the pot. Hit it with a cp-safe fungicide and it'll knock that stuff out. I personally use Scott's Disease EX. If you change it like that you'll be wasting money.
At this juncture, I'd take it out and wrap the roots in a damp paper towel (with safe water). I'd suggest getting either some new zealand or chilean sphagnum moss as soon as possible. Besgrow sells a great sphagnum moss but it's a little expensive. If you have better gro orchid moss (or any at this point, even mossy oak)at your hardware store I'd get that if it's available. If that isn't available, you can make it happen with some peat moss and perlite (no additives at all to the components 50/50 mix) and repot it one more time. Place it in a place where it gets good light, try to increase airflow, and let it recover. We're entering a time where plants go dormant too. I'm not a pro on fridge dormancy but there are tons of articles on it. Alternatively, if your climate allows, place it outside in the shade for a bit to acclimate before bringing it out into the light and let it do its thing.
Skipping dormance is doable but it's definitely risky if you're not equipped for it. That usually requires a lot more effort.
*Edit* I just realized you live in Arizona. You should be able to keep it outside for dormancy. You can try to induce it by putting it near a window where it gets cold with a shorter photoperiod, that may work if you really want to keep it inside
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