ISSUES/BUGS with Dine Out

I tried playing a seafood restaurant that I built and put into the only save I have with people in it. At first everyone stood on the sidewalk. Then finally the chef and waiters came up (actual restaurant is not on ground floor), but the host continued to stand outside. I couldn't request a table by clicking on him, the station, or a table. Just nothing. So I went into build mode and removed one of the two host stations, thinking that would clear it up (also removed fridges while I was there, and swapped entry arches for actual doors, since everyone came in and went straight to the restroom). This allowed me to "request table", but the host would not engage until one of us had greeted him ("funny greeting"), and even then he wouldn't come up. So I took the one remaining host station and put it in front of him by the stairs, and it was good. We could finally get a table.

Otis took a seat, but his family was no longer part of his group (probably from all the in-and-out of build mode). I had him order, which got him nothing. I had him order again, which grayed out the screen. It's frozen. I can't even close it from the desktop. I'm getting ready to reboot and try it again if I have time, but there are a few suggestions people might try if they're having trouble getting things to go right.

If nothing else, I really like the new stuff, and I usually just build anyway. I just thought I should try the place since I've already uploaded it. Now I'll need to pull it and upload a working version once I get it right.

EDIT: I opened a build save with two people in the entire world, and put down the edited restaurant. Everything worked until I tried to order, and it froze again. Last resort - should have been step one - remove all mods and go again. And then delete the sim with all the cc, because she will be a hot mess after this experiment is over. HA. But no more time for playing right now.