Hello All
I understand from Nawaporn that, The revenue department of Thailand has postponed the new requirements to 2015 which is available in Add-on Version 2.19. So for now I have rolled back to Version 2.17 (This is sufficient for 2014) and set to Automatic start.
Could you please Logoff SAP and Log in again, The Add-on 2.17 should start automatically.
Meanwhile Humanica will investigate the cause why we had this issue with 2.19 Installation