I get these Errors frequently too, i just notice it's 99% of the time after i changed a Map, sometimes it works out but... well i can see the Error coming tbh
Shortly before the Error appears the game acts up, Questlist doesn't load properly, Npcs need some time to appear and the most 'funny' till now...
I fall through the Map in Limsa Lominsa xD i was on my way to the Arcanist Guild and suddenly fell through the Bridge into the Water, had to pay 100 Gil to get back up by using Teleport xD