Why is my cartridge not pulling smoke?

Excuse me, I'm having some trouble with my vaping device. Specifically, I've noticed that the cartridge is not pulling smoke as it should. Could you please help me understand why this might be happening? Are there any common issues that could cause this, such as a clogged nozzle or a faulty battery? Additionally, what steps can I take to try and resolve the issue on my own before seeking professional assistance? I'd appreciate any insight you can provide. Thank you.