When I was loading up a server with Quark r1.3-115 the log said:
"A broken ore dictionary registration with the name tallow has occured. It adds an item (type: class vazkii.quark.decoration.item.ItemTallow) which is currently unknown to the game registry. This dictionary item can only support a single value when registered with ores like this, and NO I am not going to turn this spam off. Just register your ore dictionary entries after the GameRegistry.
TO USERS: YES this is a BUG in the mod Quark report it to them!"

This was fixed already.