I've been trying to play modded minecraft version 1.16.5 but keep getting this error, after some testing, I've narrowed the problem down to the Obfuscate mod, which is required to run Time and Classic Guns mod, can someone please aid me on how to solve this problem?

crash-2023-12-03_18.13.58-client.txt

This issue is not related to create and is caused by a addon mod/another mod.

Sorry, 1.16 is no longer supported.