I cannot find the config file you asked to delete and when I delete it the forge loader says the codechickenlib cannot be found.

also when I delete the codechickenlib file which isn't in the configuration file an error comes up saying that codechickenlib doesn't exist in the file

i tried deleting the config file and it still came up with the error

#270
Whatever launcher you use to launch the game, Twitch, FTBApp, Multimc, there should be a button to open the folder the install resides in, once you have done that, follow the instructions in the issue I linked. If the issue persists after deleting a config file, then you deleted the wrong one.