So like the title says, I created a portal, and the portal was on the side of a mountain. Not to bif a problem. Made my way to the ground layer and started digging, but I realized that there are no blocks dropping for me. No dirt, cobblestone, no coal nor granite.

I'm using Miners_Horizon 1.1.0
Fabric 0.2.7 build 127

Not your mod that was the problem, I was just in your mining dimension when I noticed this issue, but it's from another mod i added, the Refined machinery mod.