I don't live in your state but here, they are called PPO's (personal protection orders). They are almost always issued ex parte without a hearing ( judge only hears one side of the case). The judge may prohibit the respondent from purchasing or possessing a firearm. It may be a federal issue if the Brady Law firearm prohibitions exist (PPO issued due to domestic violence). Store your guns elsewhere so you do not have possession of them. If the PPO was issued ex parte, you should have a right to challenge it. PPO's are almost worthless. A piece of paper will not stop someone from harming you. The ones it does stop are usually the ones who would be nice if you asked them to. Here they are used as instant eviction notices. I had an officer I worked with go on suspension as his neighbor got a judge to issue a PPO against him and no firearms was one of the conditions. I read a PPO deposition was that a woman felt threatened because a co worker asked her out on a date in the parking lot and that scared her. I had to tell him he had to find another job or contest it because he was now prohibited from his workplace as long as she was there. And, I work with another officer who was shot in the head while investigating a prowler who was actually an estranged husband trying to kill his wife after driving half way across the USA and violating the PPO! I still don't have a good answer on why PPO's are legal. A judge who issues them near where I work said they are legal. She didn't buy the constitutional rights argument. The respondent looses his/her rights when he/she threatens, stalks, beats, or harasses the petitioner. I'm off my soapbox now. Appeal the protection order and store the guns out of your possession until the order is gone. If you lose the appeal, you still don't have to sell the guns. Wait the order out as most are only 6-12 months long. Some people piss the judges off and it becomes much longer!
Like others have said. Get an attorney to get the best advise and results.