Many people blame the reason behind this problem is due to the blog’s template. According to me the problem is with Facebook which fails to fetch the data from the URL what we want to share. The reason behind the same link is working again is because the specific posts gets indexed by the Google and also by the Facebook as the time passes (after when the bots crawls page).
So to bypass this 404 error, follow the steps carefully:
Step 1: (Make sure your are logged in with your Facebook account)
Open up the Open Graph Object Debugger page by clicking the following link down below:
Step 2: Copy the URL of your published post & paste it there and hit Enter.
Step 3: Then it will show you the various segments due to which the error is showing up.
Step 4: Just hit the Fetch new scrape information.
Step 5: Now simply share the URL again on your Facebook Page, & voila the error would be gone by now. (You can also share the post by scrolling it down and clicking the See this in the share dialogue).
That’s how I fixed this problem, do you have your own method to share?? Let me know by sharing your thoughts right under in the comments section!!!