Even if you have SKSE64 installed, RaceMenu is reading the version as 0.0.0.0 . This usually happens for one of three reasons:
To confirm if SKSE is actually running, open the in-game console (usually the tilde key) and type getskseversion . If it returns "not found" or 0.0.0.0, SKSE is not loaded. RaceMenu Error(s): you are running SKSE version 0.0.0.0 skyrim racemenu error you are running skse version 0000 link
The error is not a death sentence for your modded Skyrim. It is a communication breakdown between RaceMenu and SKSE – usually caused by: Even if you have SKSE64 installed, RaceMenu is
Delete your current RaceMenu mod from your mod manager (or delete the RaceMenu.esp and RaceMenu.bsa files from your Data folder) and install the correct version for your SKSE build. Even if you have SKSE64 installed