RollBackup "Downgrade" Nexus Repository de 3.13 vers 3.8

Hi every one i try to downgrade my Nexus Repository manger from 3.13 to 3.8 ,
unfortunately the rollbackup don’t resulted .

i share with you my result Downgrade%20Nexus

Thank you

Downgrade is absolutely not supported. Nexus Repo 3 uses multiple databases, and their schemas change from release to release. If you need to roll back you’ll have to restore from backup.