Finally I was able to get the Facebook page feeds back on my website. Here goes the steps I followed to restore the feeds:
Step 1: I logged into Facebook developer portal and created new Facebook Application (Website). You can find the details on how create a Facebook App from the following link: How to Create Facebook App
On the newly created app you will find the "App ID" and "App Secret" values.
Step 2: On my website, I used the "App ID" and "App Secret" to retrieve an "access_token" from Facebook. I used C#, so the line of code I used was:
string access_token = "";
try {
access_token = webClient.DownloadString("https://graph.facebook.com/oauth/access_token?client_id=616255239999&client_secret=989898989898acec7c3aabbccddf84b66&grant_type=client_credentials");
}
catch {}
Replace client id with app id and client secret with app secret values copied from the previous step. If the values are correct you will get a response like:
access_token=616255878567492343|UYgAYWXYztpFGRawnZ2VlTE
Step 3: Now use the access token retrieved from the previous stage to call Facebook Graph API to get the feeds:
string facebookjson = webClient.DownloadString("https://graph.facebook.com/v2.2/1730999949494/feed?access_token=616255878567492343|UYgAYWXYztpFGRawnZ2VlTE");
The construct of the URL would like below:
https://graph.facebook.com/v2.2/[your_facebook_page_id]/feed?access_token=[your_access_token_value]
And voila!! You get the feeds from your Facebook page in a JSON response.