I run a startup that is hosted on Heroku. I write Ruby code but can't handle operations (I have and can set up servers but if shit hits the fan I wouldn't have

I run a startup that is hosted on Heroku. I write Ruby code but can't handle operations (I have and can set up servers but if shit hits the fan I wouldn't have a clue. Also I don't have the time). My startup is a one-man show. And you suggest I should grow up? By grow up you mean that I should watch my customers face days of downtime because I don't know how to fix the server, how to secure the server probably, how to scale or have money to hire someone who can? Of the "ShitHNSays"-stuff I read here this surely takes the cake.