Population -1/120, bugs and crashes

I have had so many issues in multiplayer where my game freezes and then crashed. The weirdest bug I get is when my population goes to -1. The game won’t allow me to build any more units, and I basically become a spectator. Anyone else have this bug?

Also, my game crashes about 1/4 of multiplayer matches. Why doesn’t the game try to reconnect me when I reboot? I like this game, but the bugs and crashes are so frequent it’s almost not worth trying to play. I downloaded this game online, so that might be the cause of my problem.