Board Thread:Bug Reports/@comment-140.103.56.79-20170430170536/@comment-25101089-20170501211957

Just had a look at the Thaumcraft code. Yes, Sinthorion is right. The error is due to the Thaumcraft item code attempting to reference the wearing entity, but since there's no entity wearing it, we get this error. I don't imagine they are still developing their 1.7.10 version though, so it probably can't be fixed.