With the 1000s of users and only this thread of users reporting it, it seems unlikley to be a bug.OF course we need to check to see if there is a compatability issue with another extension.
Has any new extensions been added since last time it worked.Do you have any extensions that have auto updates that could have updated.
@Luis, I checked you link and it loads.
@mindfull, yours is still showing 404 error, is that link still active ?
Simon