Was the BoS mod the only mod you had installed? If not you may want to try clearing your override folder and installing only the BoS mod as it could be a mod conflict.
If BoS was the only mod you had installed you may want to simply reinstall the mod.
If you've already tried that...I can't help much further...sorry.
"You'll find that many of the truths we cling to depend greatly on our own point of view."