In order To get access_token you must have to perform below both steps
STEP 1 : Click HERE ALLOW PERMISSIONS TO THE FACEBOOK APP
STEP 2 : Click HERE AND you will get access token like this
COPY whole access token and PASTE it in HOME
In order to activate your Facebook Followers, your age must be +18 , if not change your age then you can activate it. Click here to open your Facebook follower setting
In your Facebook setting page, change your Follower setting from “Friends” to “EVERYONE”.
Now, everytimes you create new posts, your Post permission's must be in Public.
You can auto like comments in different type of posts, status posts, shared posts, video posts, picture posts, etc to get the id just click in the time of the comment (watch below)
Now It is really simple, you only need to put your post or comment id after click on post or comment time in the input box Comment LIKE