Database configuration failed: class java.time.LocalDateTime cannot be cast to class java.lang.String (java.time.LocalDateTime and java.lang.String are in module java.base of loader 'bootstrap')
I would suggest setting up a DB and then running the Crowd setup wizard again. Here is the documentation on how to setup the DB https://confluence.atlassian.com/crowd/connecting-crowd-to-a-database-4030904.html
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