Error in NLP: Code -D1104

From Server log:
Caused by: java.lang.IllegalStateException: Error in NLP: Code -D1104
at zz.c.a(Unknown Source) ~[languageStar-1.3.jar:?]
at com.veritas.languageStar.LanguageFacade.parseAllSyntaxes(Unknown Source) ~[languageStar-1.3.jar:?]
The issue is observed when the AES Key present on the machine cannot decrypt the password values in the DB (because they are encrypted using the different key). This is caused by the AES key in the database for a given node being different than the AES key associated with the cases on the same node. Effectively, the AES key stored in the database, that is used to decrypt the password for the case's sources does not match what the case has on disk.
There are two possible solutions.
1. Restore case backups that existed prior to upgrading to eDP 10.0.
2. Restore a node backup without config, of a version prior to eDP 10.0.