修复

app/views/repositories/_contributor.json.jbuilder

@@ -14,5 +14,5 @@ else
   json.name user["name"]
   json.image_url user["avatar_url"]
   db_user = User.find_by_id(user["id"])
-  json.blockchain_perc db_user.contribution_perc(project)
+  json.contribution_perc db_user.contribution_perc(project)
 end