If you previously install obse 0021,and obse loader won't launch,then the most mods like character overhaul and blockhead will not work properly.Just download second obse loader from description and replace it,then launch game using obse loader. This should fix faces with "Install Blockhead" message written on them. I hope this will help you
OBSE loader
obse.silverlock.org
9 апр 2018