Lost my iphone xs max by solen

Dear Apple Support,

I lost my iphone by someone stolen.

Now can not find it by "Find my iPhone". What you we do? Can we lock that phone can not use anymore?

Here is detail of the phone:

• Model: iPhone XS Max A1921
• Version: iOS 13.3.1
• Serial Number: GR5YJ2K6KPHF
• IMEI: 35 727909 521736 9
• Activation Status: Activated
• Tech support: EXPIRED
• Warranty: ACTIVE
• Warranty expiration date: July 10, 2020
• AppleCare Eligibility: Not eligible
• AppleCare Coverage: Not covered
• Blacklist status: CLEAN

Please help to support of my question and requirement.

If any alert or in case contact please to number +85585665566.

Thank you in advance.