Many players got cityville loading bar stuck at 93% and error #28 after they upgrade the television tower to level 2 and 3.
cityville team already noted this issue as known issue and fixed it
here’s what moderator on cityville forum said :
A fix for this issue is in the process of being rolled out. Many of you may already be able to get back into the game. If you are still not able to, please try clearing your cache and try again in a couple minutes. If you are still not able to get back in after that, please let us know.
so i hope you won’t see any error for now