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1.8.9 is no longer supported on this forum due to its age. Update to a modern version of Minecraft to receive support.

Please help.

Hey everyone,   I am getting this error: [18:30:23] [Client thread/WARN] [minecraft/ScreenManager]: Trying to open invalid screen with name: gocraft   I have a literal headache trying to figure out why its throwing that error. Please excuse the messiness as I am going to clean up later.   This is my container This is my screen This is my client proxy This is my item   I am able to have the item name show up and it shows in my hand, but when I right click it, I get that error. Anyone know why?   And sorry its all on GitHub. Full Git:   Thanks in advance!!  

I see you're using Java 13, this isn't going to work for running Forge, though I don't think it's the issue here. Apparently your Minecraft jar is somehow incomplete, delete versions/1.14.4/1.14.4.jar and try again.

How did you install the modpack?