For the best results, simply restore a new database from a backup.
For more information, read this article about backup configuration.
If there is no recent/relevant backup available, it is possible to use the Voron Recovery Tool.
This tool can be used to recover intact data from the corrupted file and import it to a newly created database.
If the corruption has affected an index, it should simply be reset in order to restore normal functionality.
If the corruption is caused by a hardware failure, identify and replace the faulty disk.