If a member of your team has no skill/class, when you start a green dialog pops up telling you you can't start before resolving the issue

But if the team is not filled (ie, only 3 cats in the 4 cat team), I can click through "explore this area", which leads to a blank page

I *think* this shouldn't be intended, or if it is, I think it should be changed because there's no way to go back to edit the adventure team with this blank page except to click the menu on the top right and get to adventure page from there