PG_CRON doesn't work

Yes, it was working perfectly until 3 days ago. I shut all sessions on my database (there were farr too many idle connections) using the following code

SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE pid <> pg_backend_pid() AND datname = 'database_name' ;

From then on, I believe, it stopped working. I don't know if this is what triggered it to not work anymore? Any way to restore it?

I don't know enough about the PG engine to tell you, so we'll have to see if others know.