Oh, I'm dumb, the version that still works for me is: 07.33.00.
More on this,
If I try to search an empty zone, I don't get the error. But if I add 1 npc to that zone, that doesn't even have a faction or loot table assigned to him, I get the error if I try to search that zone again. I did this because the error said something about items, looking at it again I don't think it meant EQ items
. It doesn't even seem to try to load any of the npc's, it just instantly pops up that error.