set security:isEnabledPassport to true

src/migrations/20190618055300-abolish-crowi-classic-auth.js

@@ -15,7 +15,7 @@ module.exports = {
 
     // enable passport and delete configs for crowi classic auth
     await Promise.all([
-      Config.deleteOne({ ns: 'crowi', key: 'security:isEnabledPassport' }),
+      Config.findOneAndUpdateByNsAndKey('crowi', 'security:isEnabledPassport', true),
       Config.deleteOne({ ns: 'crowi', key: 'google:clientId' }),
       Config.deleteOne({ ns: 'crowi', key: 'google:clientSecret' }),
     ]);