mcreator Error loading mods

hello I have a problem with mcreator, well a few days ago I exported my mod and everything works fine but after exporting it I wanted to add a few more things like doors, stairs, slabs and some blocks and when I click the run client I get an error that error loading mods and stuff, I guess the error is the slabs and doors and stairs that I added but I really need that in my mod and I don't know what I did wrong

the error:

https://imgur.com/a/A8adTvm