Trying to deploy Go app using dokku

I’m new to digital ocean and trying to deploy my go app using dokku to an ubuntu machine. When I’m pushing to the server this is the output:

-----> Cleaning up… -----> Building testapp from herokuish… -----> Setting config vars CURL_CONNECT_TIMEOUT: 5 -----> Setting config vars CURL_TIMEOUT: 30 -----> Adding BUILD_ENV to build environment… -----> Go app detected -----> Checking Godeps/Godeps.json file. -----> Installing go1.4… done -----> Running: godep go install -tags heroku ./… -----> Discovering process types Procfile declares types -> web -----> Releasing testapp (dokku/testapp:latest)… -----> Deploying testapp (dokku/testapp:latest)… -----> DOKKU_SCALE file not found in app image. Generating one based on Procfile… -----> New DOKKU_SCALE file generated =====> web =0 -----> Running post-deploy -----> Setting config vars DOKKU_APP_RESTORE: 1 =====> Application deployed: remote: /var/lib/dokku/plugins/enabled/00_dokku-standard/commands: line 190: /home/dokku/VHOST: No such file or directory http://

To dokku@162.243.5.252:testapp

• [new branch] master -> master

What is this error? How to clean deploy my app?