When i load Blackwood it says: "can't load BWfence1alpha" several times and something is missing at blackwood.

What can i do to resolve this?

The BWfence1alpha.dds IS present in my LFS dir

Is this a problem you had when you first d/l lfs or one that has just recently started happening??

Directly in your LFS dir or in your data/dds subfolder?

If it's directly in the LFS folder then you unpacked the zip wrongly. You have to check a option like "preserve folder structure" in your unzip program, so the original folder structure from the zip is used while extracting.

Just make sure that is checked and install (= unpack) LFS again.