Hi,
@twisted1919, Can you check https://kb.mailwizz.com/ is showing
Error establishing a database connection
p.s.
If anyone have the upgrade steps to mailwizz 2.0 and preparations steps also, please post it here
I have issue when i want to import suppression list.
Here what i see when i import a suppression list, and before i successfully import some suppressions lists (i got other mailwizz on other servers and its the same problem)