I agree with rk911, but before running the stove burners turn off the valves at the tank. Disconnect the hoses, wait a few seconds and then reconnect. If you have two tanks and an auto switching regulator; Make sure the lever is all the way one way or the other.
slowly turn on the tank valve. If two tanks turn on both valves. Now light the stove burners and let them burn for 15-20 seconds then turn off.
Try the refrigerator again and let us know if it's fixed. If not tell us how it's behaving now and we can give more suggestions.