Weird bug that crashed the game in Raids.

For a week now i experience a very strange bug,

When we first enter a raid dungeon and someone eats food i get a critical error and the game crashes, this only happens when we first enter the raid, after the error and i log back in it doesnt happen in that same instance anymore.
Someone in my group told me he had the same thing during stormblood.

any solution?

This sounds like something to post in Technical Support. You might also want to do a search to see if anyone has previously posted about the problem and had it resolved.