How long have you let the game run?
Off the bat, for yellow on the right, I see a Greenhouse world as their first stepping stone. That requires a fair number of labs to colonize.
On the left, blue, I think that looks like Oceanic? Same deal, there.
Would be best if you gave each player access to at least 1 world that doesn't require research or a large fleet to colonize (ie, Asteroid, Moon, Barren).
If sharing of the map file ends up being needed, pastebin.com. The galaxy file is nothing more than a text file... you can copy/paste the contents to pastebin then give us the link.
EDIT: And sorry, I'm assuming you're using Galaxy Forge? (Not the map generator accessible through the game itself.)
For future reference, anything to do with a custom made map (where you're experiencing the issue only on that map) probably fits best in the modding section. Not a big deal, I think it might be fine here, too, just dunno how often folks who know these actual things would look in Technical.
