Now that i’m back on a computer, rather than the tablet, here are a couple links:

Downloads, including errata:

the7thcontinent.seriouspoulp.com – The 7th Continent – Serious Poulp

Forums:

https://the7thcontinent.seriouspoulp.com/en/forum/

https://www.boardgamegeek.com/forums/thing/180263/7th-continent

BGG’s forums are (predictably) far more active, but the 7C forum is “more official” (in particular if you can read French). The designer answers questions on both, but he also has at least one moderator handling questions on the 7C forum, so official answers appear there more quickly, more often than not.