Unhandled error when attempting to create multiple clusters
https://sentry.gitlap.com/gitlab/gitlabcom/issues/477089/
ArgumentError: Instance does not support multiple Kubernetes clusters
clusters/create_service.rb:12:in `execute'
raise ArgumentError.new(_('Instance does not support multiple Kubernetes clusters')) unless can_create_cluster?
projects/clusters_controller.rb:77:in `create_gcp'
.execute(token_in_session)
action_controller/metal/implicit_render.rb:4:in `send_action'
ret = super
abstract_controller/base.rb:198:in `process_action'
send_action(method_name, *args)
action_controller/metal/rendering.rb:10:in `process_action'
super
...
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ArgumentError: Instance does not support multiple Kubernetes clusters