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Cannot authenticate to Crowd after database upgrade

I recently upgraded postgres form 9.3 to 11.7 in preparation to upgrade Confluence and JIRA versions that are end of life.  The upgrade was successful and both Confluence and JIRA are running fine; however, we are unable authenticate users against Crowd.  The crowd server stops running after a while (Java continues to run). Log indications are that Crowd cannot connect to the database any longer.  However, I cannot determine why this is the case. None of the server configurations changed.  Crowd.cfg.xml and remain the same.  Attempted to increase the number of  max size property from 30 to 60 as was recommended for a similar previous post.  No affect.

<property name="hibernate.c3p0.max_size">60</property>


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any errors in logs ?

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