Spring wear or breakage
Springs can creak, pop or bang when they are fatigued or break.

Noise and hardware
A popping noise can be harmless or a warning. Springs, rollers jumping in the track, panels flexing and hinges binding can all pop. Because springs can fail suddenly, a new popping sound is worth taking seriously.
Short answer
Listen for where the pop comes from. A pop near the spring above the door, especially with a door that feels heavier, can signal a spring problem. Pops along the track can come from rollers or hinges. Stop using the door if it feels heavy after a pop, and book a technician.
Springs can creak, pop or bang when they are fatigued or break.
Worn rollers or misaligned tracks let rollers snap back into place.
Thin panels can pop as they flex, especially in heat.
Dry or cracked hinges can pop at the curve. See hinge repair.
It helps to record a short video of the sound with the door moving. The technician can often tell from the timing whether the pop comes from the spring winding, a roller jumping at the track curve or a hinge flexing between panels.
Describe what the door is doing when you call. A provider may ask follow-up questions, but a reliable price normally needs an on-site look rather than a phone-only quote.

Most homes have torsion springs on a shaft above the door or extension springs that run along the horizontal tracks.

The type of noise is a useful clue.

Most residential doors have between eight and fourteen rollers, depending on height and design.
It can be. A pop from the spring area may signal a spring about to fail. Have it checked soon, and stop using the door if it feels heavy.
Heat can cause panels to expand and flex, which sometimes makes popping sounds. Dry lubricant can also make hinges and rollers noisier.
If dry hinges or rollers are the cause, lubrication may help. Pops from springs or bent tracks need a technician.
A single loud bang is often a torsion spring breaking. Look for a gap in the spring and do not use the door.
Yes. Worn rollers can catch in the track and snap back into place, causing a pop. Replacing them usually fixes it.
You can snug accessible hinge screws, but avoid anything connected to springs, cables or bottom brackets.

Call to schedule a technician visit with an independent provider who serves your area.