FTB Ult. server load erroring with thaumic bees & backpacks

elfruler81

New Member
Jul 29, 2019
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High I am wanting to upgrade our server from mindcrack to Ultimate. On upgrading and then trying to load i get the error
Exception in server tick loop java.lang.RuntimeException: Could not register backpacks via Forestry

this is the pastebin of the error http://pastebin.com/7n9CVEXg
any help would be great.