[MM3-users] Re: [migration] to a another server - one year database apparently lacks fields for newer mailman3/django suite

I also solved this issue. How?

By adding columns to two tables in the database mailman3web:

alter table hyperkitty_mailinglist add column archive_rendering_mode varchar(255) default null; alter table socialaccount_socialapp add column provider_id varchar(200) NOT NULL; alter table socialaccount_socialapp add column settings longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL CHECK (json_valid(settings));