acymailing joomla version 3.6.5

need to add a field but the component shows error
Any thoughts idea on this?

I have updated from Joomla 3.6.5 to Joomla 3.8.6 but I have this message: "error" (frontend and backend)

Pellerin64 Please open support ticket using our contact for so we can take a look. Be sure that you have the latest version of AcyMailing installed