hello, im currently try to add the wasteland oto to my utau but ends up they cant singing

so when i wanna add the oto, i download the oto in wasteland with the same reclist and type w my voicebank but after i convert it to zip and add it to openutau my voicebank cant sing,ive even try to change the oto w the wasteland oto that i download but its still not working, im still new to make cvvc advanced voicebank