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
CURLCONNECTTIMEOUT: 5
-----> Setting config vars
CURLTIMEOUT: 30
-----> Adding BUILDENV 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)...
-----> DOKKUSCALE file not found in app image. Generating one based on Procfile...
-----> New DOKKUSCALE file generated
=====> web =0
-----> Running post-deploy
-----> Setting config vars
DOKKUAPPRESTORE: 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?