Rewrite add-on from python 2 to python 3 and SQL

Hi all,

I have installed this repositorie to have the add-on.

I have noticed some misteaks need to be correct :
-passing some lines from python 2 to python 3
-after correcting first problem from python 2 to 3, sql problem appear !

It's possible to rewrite some lines to update the associated add-on from this repo ?

Thanks a lot