Whenever I open my inventory, it shows me already have typed in fluid and things from industrialcraft 2 show up, even though I don't have that mod installed currently. whenever I try to delete the text my game instantly crashes.

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Thanks for the report!
I need some more information to solve this issue, please paste your full fml-client-latest.log or latest.log to https://gist.github.com and link it here.

The game crashed whilst rendering ingredient
Error: java.lang.IllegalStateException: Not building!
Exit Code: -1

is what the error code says