Stuck on Infinite Loading Screen

I started playing the game earlier today, completely normal, no bugs nothing. I logged into it later today, and every time I went to go into build mode from the map, it would send me into an infinite loading screen- same with exiting create a sim. This is so frustrating, I tried getting through to a live agent, but all it gave me was the AI, which just sent me to a forum thing which bared no relevance to what I needed help for. I know this issue is not due to a mod, as it was running completely fine earlier, and if it had been a mod, it would have happened before this point. I repaired the game, but this did nothing.

Edit By crinrict: Adjusted Title