Issue with json models

Hi there,

I just added some new content to my dyed planks mod, and in order to get dyed slabs, and stairs etc you have to make a model through json files. I have made them through Mrcrayfish's Model Creator but when I try to launch the mod on Forge 2810, which should work as it is one of the more recent versions. However, earlier I have been able to run the mod without the new slabs and stairs added on forge 2810. I am not sure what to do. I have this mod on a server, and I would like to update it however I cannot put it on the server as the forge version is 2810 and the required forge version is 2768 apparently.