AWS RDS Instance (Postgres) crashes when running function included in pg_cron extension

I've been leveraging the pg_cron extension to run scheduled precompute jobs within the Postgres DB for over a year now, and have never had this issue.

This extension comes with a table that logs the jobs that need to be run, as well as a function that allows you to easily create new jobs and insert them into the table. Today, when trying to schedule a new cron job in the Postgres DB, the DB crashed - terminating all existing connection to the DB.

We haven't changed anything in the DB since yesterday, so it is confusing as to why this extension may be related to the crash. I'm hoping someone can help provide some insight.