Hi @Meera E
Per my test, I can reproduce your error by calling /users/{user-id}/followedSites
endpoint. After doing some research, I found that there is no such endpoint currently. I am unable to found any offical document about the api, and currently only support following api
POST /users/{user-id}/followedSites/add
POST /users/{user-id}/followedSites/remove
GET /me/followedSites
You can refer to folloing link
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.