Couldn’t look up profile properties for mojang error after pasting a worldedit schematic

Hello, im having a strange error when pasting a worldedit schematic.

Well i had a building in other sponge server, now i created another one, so o copied and pasted that building to that new spogne server, the problema is that when i paste the schematic with worldedit, my console spamms this error http://pastebin.com/MBU3bQBk

I asked on the chat and followed some guides but with no luck, i removed all heads of the building, that could be the problema, but the error still, i dont know what else to do, please help me, im also using pixelmon if it helps, and there are pixelmon items on the building

I’m almost certain that it’s something like a player head in the schematic is using an offline UUID - causing Sponge to fail to look it up.

It could also be that the pixelmon block are storing a player UUID.