Jun 07 07:42:51 foreman.local.tuurdutoit.be systemd[1]: Starting Foreman Proxy...
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]: /usr/lib/ruby/vendor_ruby/dynflow/director.rb:16:in `block in <class:Director>': uninitialized constant Concurrent::Edge::Future (NameError)
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]: Did you mean?  Concurrent::Future
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/algebrick/dsl.rb:35:in `instance_exec'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/algebrick/dsl.rb:35:in `initialize'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/algebrick/dsl.rb:89:in `new'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/algebrick/dsl.rb:89:in `type'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/dynflow/director.rb:12:in `<class:Director>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/dynflow/director.rb:9:in `<module:Dynflow>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/dynflow/director.rb:1:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/dynflow.rb:43:in `<module:Dynflow>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/dynflow.rb:19:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/smart_proxy_dynflow_core.rb:1:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/smart_proxy_dynflow/plugin.rb:8:in `<class:Plugin>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/smart_proxy_dynflow/plugin.rb:6:in `<class:Dynflow>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/smart_proxy_dynflow/plugin.rb:5:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/smart_proxy_dynflow.rb:2:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext/runtime.rb:41:in `block in system_require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext/runtime.rb:37:in `each'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext/runtime.rb:37:in `system_require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext.rb:19:in `block in system_require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext.rb:14:in `each'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/vendor_ruby/bundler_ext.rb:14:in `system_require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/share/foreman-proxy/lib/bundler_helper.rb:22:in `require_groups'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/share/foreman-proxy/lib/smart_proxy_main.rb:33:in `<top (required)>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
Jun 07 07:42:51 foreman.local.tuurdutoit.be smart-proxy[15818]:         from /usr/share/foreman-proxy/bin/smart-proxy:5:in `<main>'
Jun 07 07:42:51 foreman.local.tuurdutoit.be systemd[1]: foreman-proxy.service: Main process exited, code=exited, status=1/FAILURE
Jun 07 07:42:51 foreman.local.tuurdutoit.be systemd[1]: foreman-proxy.service: Failed with result 'exit-code'.
Jun 07 07:42:51 foreman.local.tuurdutoit.be systemd[1]: Failed to start Foreman Proxy.