Fixed bug due to unneeded :

lib/redmine_send_dm/hooks/msg_listener.rb

@@ -16,7 +16,7 @@ module RedmineSendDm
 
       def send_sms(context = {})
         phone = context[:phone]
-        id: context[:id]
+        id = context[:id]
         # Dynamically read parameters passed from caller hook
         parameters = context[:parameters] || context[:msg] || {}