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Please see the official X‑Plane Support page for help.
I am not from Laminar Research; just a flight simmer from downunder.
Provided you have a genuine disc version from Laminar Research you need to contact them direct at i[email protected] and explain your situation in seeking a replacement for a damaged disc. Replacement DVDs can be made available at a cost. Have a look at the following link found at https://www.x-plane.com/product/x-plane-10-replacement-disks/ Nothing will be organised for a replacement from Laminar Research until you make contact direct with them.
If you have a disc version from Aerosoft (licenced from Laminar Research to sell the DVDs) you may need to contact them in the first instance. Details should be on the packaging.
As a side issue are you aware the final issue or update for version 10 is 10.52.
Why not consider a complete upgrade to X-Plane 11. The current version is 11.32.
This site is no longer being actively maintained.