Sorry to hear of the problem you are having.
Are the posts in Draft?
Could you please tell me the names of those posts?
Could you please temporary disable the cache on your site and make sure you are using below latest version of theme?
Please login to access this file
Would you mind if i log in to your site and do some troubleshooting? If this is ok then could you please share me your site log in details privately by adding them in the box having text “Click here to share private content. Only you and forum moderators will be able see it.”?