Please help anyone knows the issue.

Have you tried redeploying the database?

I dont have the backup of previous database

I'm sorry but I'm not sure what that has to do with my question.

No I have not redeployed the database. The last time, the app was used was in January 2024. Today while checking, found this issue.

Try re-deploying the database.

If I redeploy the database, what about my previous data.

Unless you have severely missconfigured something, nothing would happen to the data, would you care to share why you think anything would happen?