Hi,
I cannot update Modern Events Calendar via the update tool of Wordpress.
I checked the version of MEC that is supported by THEMECO and it is 5.8.5 (https://theme.co/docs/version-compatibility).
I have the 5.6.1 version installed currently so I should be able to update.
Also, I tried to revoke my THEMECO licence then activate it again but I got the same error when I tried to update MEC after.
Best regards.