Occasionally, for unknown reasons, the database table that keeps track of recent migrations gets dropped. Somehow. To resolve this, re-create the table:
create table if not exists public.alembic_version
(
version_num varchar(32) not null
constraint alembic_version_pkc
primary key
);
Then you need to figure out what value to put into the ‘version_num’ column.

See how those two bits of gibberish are the same length?
Look in the app/migrations/versions directory, sort files by date. Then find the one before the new migration(s) that appeared when you did your last git pull
. Insert the beginning of the file name into the database table.