i have submitted it for game off 2018 and i also want to submit it for weekly jam 71

Yes, you can, but please read the rules carefully first, and make sure you respect the spirit of the jam if not the theme. If in doubt, post in the jam's community and ask the organizers. The Weekly Game Jam 71 doesn't have one, but they have a Discord server and Twitter account, so you have other ways to contact them.