Background loading errors, are a common problem, even on the live servers. They are just the result of something either not downloading correctly or downloading very slowly, sometimes due to a slow connection at the time. Reloading the game using CTRL+F5 will usually resolve the issue. If not, try clearing browser & flash caches & testing your connection speed.
Comments
Google translation:
The horizon does not appear at the top of the screen. I find it very ugly
(black-.-angel)
I opened my farm and this happens
when changing farm looks like this
edit: posts merged (black-.-angel)