Description of the Bug

as soon as i try to start the modpack, it crashes before even opening minecraft on its own and i get thrown back into the launcher with the error code 1

here comes now the weird part:
as soon as i looked in why it crashed in the crash report it said that it expected a non empty class data from the ocelot but the class data was empty according to the crash report
latest.log

Expected Behaviour

help

Modpack Version

1.6.1

Screenshots

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Log

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Extra Info

none