I’m tempted to copy and paste my blog post about DBMS_OPTIM_BUNDLE from February 2019, and exchange only 188.8.131.52 with 19c. But in this case the root cause is different. So this blog post is meant for Oracle 19.3.0 to be precise – in case you miss
DBMS_OPTIM_BUNDLE … again … ?!?
Information about DBMS_OPTIM_BUNDLE
You will find a lot of information about
DBMS_OPTIM_BUNDLE, what it does, since which release it exists and much more in these blog posts: