Hey @Gost101, I can't think of anything that would clog a volcano, but here are the things that I'd check (in case you haven't already)
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kinked tube, obstruction in filament path
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vastly oversized filament
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burr or debris in the nozzle
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insufficient stepper current or other mechanical cold end issue
I was seeing an irregular print surface on one side, I pulled the nozzle off, used a propane torch to clean it out, and a 5/64" drill bit by hand to check the barrel for burrs and other obstructions.