Your mod is creating errors when other mods have concrete as item ingredient in their recipe since your mod changes it to a fluid. Game then says Recipe is in 'crafting' category but has non-item ingredient 'concrete-mix'. So you should basically check every recipe whether it uses concrete and then also if its crafting category is crafting and change that to crafting with fluid.

Nvm, was problem on my side. Had two recipes that referenced the same ingredients and your script ran through the first one and since the second one also had the mix already then, it didnt switch it to crafting with fluids.