[neon-notifications] Build failed in Jenkins: mgmt_digital-ocean #256

[Neon CI]

See <https://build.neon.kde.org/job/mgmt_digital-ocean/256/display/redirect>

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Started by user Jonathan Riddell
[EnvInject] - Loading node environment variables.
Building on master in workspace <https://build.neon.kde.org/job/mgmt_digital-ocean/ws/>
[mgmt_digital-ocean] $ /bin/sh -xe /tmp/jenkins5952480592005216589.sh
+ /var/lib/jenkins/tooling/mgmt/digital_ocean.rb
W, [2017-11-02T13:31:02.617107 #26401]  WARN -- : previous droplet found; deleting: #<DigitalOcean::Droplet:0x005565920a3aa0>
:delete
[]
{:id=>69044495}
/var/lib/jenkins/tooling/mgmt/digital_ocean.rb:41:in `block in <main>': uninitialized constant Droplet (NameError)
	from /var/lib/jenkins/tooling/lib/digital_ocean/action.rb:35:in `block in wait'
	from /var/lib/jenkins/tooling/lib/digital_ocean/action.rb:34:in `times'
	from /var/lib/jenkins/tooling/lib/digital_ocean/action.rb:34:in `wait'
	from /var/lib/jenkins/tooling/mgmt/digital_ocean.rb:40:in `<main>'
Build step 'Execute shell' marked build as failure