Our site is showing 503 error and checking the logs it shows segment store is corrupted.
On fixing the segment store and running the checkpoints it is showing this error
Can you confirm if oak-run version used is same as that of your instance. Please share your AEM and Oak version(as available in the instance)
If you are following the steps mentioned in the this article - https://experienceleague.adobe.com/docs/experience-cloud-kcs/kbarticles/KA-16542.html
and if you have backup of your instance's segmentstore,
If you still face issues, please share the sequential steps followed and stack error trace.