DataGen model files not recognized

[Craftlgend]

Description

My mod generates the datagen files, but even though they get generated the launcher outputs the following:
Exception loading block state definition: ‘irrelevant’ missing model for variant: ‘irrelevant#’ Unable to load model: ‘irrelevant’ referenced from : mod-id:irrelevant#inventory: java.ioFileNotFoundException: mod-id:models/item/irrelevant.json

I researched now for 10 hours, but can’t find the mistake, since all the files are in the correct folders

Here the GitHub Repository: https://github.com/Craftlgend/Farming-Mod