Restore-Mailbox cmdlet is not working

We are using PowerShell commands to restore 30+ Exchange server mailboxes. But, it doesn’t give any positive hope. We also observed that all required parameters are available in PowerShell Queries. Now, our team is working on the reference of and alternative tool reference: https://www.stellarinfo.com/edb-exchange-server-recovery.htm

But, the above tool is not a freeware.

Please Help!