Hi Prashant,
The issue is in Encryption module, there is some jar has corrupted,can you delete the module and their jar files and redownload the latest version.
Note: Please use the clean deployment directory.
Check this https://community.mendix.com/link/space/app-development/questions/131443
Update the encryption module and Check EncryptionKey and LegacyEncryptionKey fields have values.
also check EncryptionMethod field is not empty.
Check the duplicate jar if you see issue again
This is a common cause of the error.