Take it to a paintball field and have it looked at. Or be specific about he electrical problem.
It depends what the problem is...
Read the manual, or be specific about the problem.
You need to be more specific with the problem with the safety, and what kind of safety it is.
There is likely a problem with your sear, if it is mechanical, or with your board if it is electrical. You should immediately take the gun to a tech, as you wont be able to play of a field with a runnaway gun.
Disassemble it and clean it.
replace the seals
Air is the source of power for the paintball marker. It is the pressure that moves all of the internal parts (unless electrical) and physically moves the paintball out of the barrel.
the safety, take out the co2. Or, just contact the manufacturer or take it to a local paintball shop to get it repaired.
The purpose of a paintball gun is to fire paintball pellets, to mark opponents in the game of paintball.
If this is happening you are losing gas. You need to fix your hoses. Make sure you have full pressure in your tank. If the problem persists, go to a paintball pro-shop and get a technician to look at the internals.
It doesn't really matter what air system you have on your gun, it should fix the same way. Depending on the marker, you'll have to follow the manuals to dissemble it. The only air problem that could happen would be the CO2 freezing up in the regulator. The only fix is to set the gun down and let it un-freeze.
A paintball marker is a paintball gun. It is just called a marker instead of a gun.