访问拒绝创建初始数据库——我如何授予正确的访问权限?

I'm making a new project on heroku, using mysql (they have an addon called JawsDB, which gives me a mysql host, username, password). (Update: I've also tried using their other mysql addon, ClearDB, and I have the exact same issue)I'm making a new project on heroku, using mysql