While my mac studio computer was reinstalling mac os an i lost internet an now have flashing ? An dont know how to reinstall it now because the repair disk isnt there any more

If your Mac starts up to a question mark - Apple Support

Please check this article and follow the steps provided.

If this is not working you can (if you have access to another Mac) try to make a bootable USB with the Monterey installer and boot from this USB

How to create a bootable installer for macOS - Apple Support

Try the following:

• Mac Startup Options.
• Mac Startup Methods.

If that does not help, then get expert service and support at the Genius Bar.

Click ▶︎ Start a Service Request. ⚛️

Need more help?

• Call Apple Support at 1-800-APLCARE. 📞
• International Support. 🌐
• Contact Apple Support. 📝
• Chat using Messages. 💬

Click ▶︎ Check Repair Status.