Botany blocks, items disappearing on maps

[Former user]

So, I was using TechNextGeneration, which uses Binnie's Mods, it went fine, I've used the fancy ceramic blocks to decorate my buildings and so on. I didn't have the mood to play for a long time, so I've left the map, everything is peace. Now, I've started up TNG, uploaded it, including Binnie's Mods and when I try to load the map, poof, it says the Botany block's are missing. I didn't notice other blocks to do so, but yeah, quite annoying. In fact, the blocks are not even in the game anymore. I've tried to rollback the mod, using previous builds bot nothing. Send help please