Question:
All post IDs are not working that's why auto comment/auto reply are not working on my end. Please help.
Answer:
To avoid encountering this issue, please make sure that the “Publishing Authorization” for the Facebook page is enabled.
For more information, please check these links:
https://www.facebook.com/business/m/one-sheeters/page-publishing-authorization
How do I get authorized to publish on my Page? | Facebook Help Center