We are glad to have you join us here and we look forward to reading of your adventures and experiences. I am sure you will enjoy the website and forums. Good luck, stay safe and keep us posted.
Some more information as to what kind of coach you have and what you may or may not have already tried to remedy the problem would be very helpful to us to try and help you.
I have looked at your profile to see you have a Fleetwood Providence. Have you tried turning the inside and outside LP shut off valve off and back on? Have you re-checked the battery installation to be sure all wiring is connected and in the proper place to power the shut off valve. Did you check any or all fuses? What year is your Providence?