Hey all, If u get the error the only solution is to wait till 2a.m. the next day, some cannot get back permanently!
There is a way round it though, I have not had the zone error msg since I tried this method and it has now worked for others! Ive had it twice.
If u buy anything from the shop ie, dec, building etc or get any building/statue in a reward or if u even demolish something to put somewhere else always "Refresh" your server.
I have moved/placed decs, nobles, watermills but ive always refreshed first and thankfully it hasnt come bk. This may not work for everyone though!