You'll need to switch to single-user mode to run the Verify and Rebuild Data utilities. I'd be happy to add some details and help you further.
To switch between user modes, you may follow the steps below:
Once done, you can now run the data utilities on your Mac computer.
For further guidance, You may read these articles:Set Up Multi-User Network.
Please let me know if you have other questions. It'll be my pleasure to help you.