Deployed App being automatically redirected to wrong page


For many years I have been deploying an app to on a weekly basis with new data (it is a sports stats site)
It is now suddenly started redirecting it to another page which may be a file I upload but has nothing to do with the main app. The 'Please Wait' sign comes up and then changes to the same message but with a smaller font . Then the incorrect page comes up. The code was all written some time ago and I have not developed in shiny for a couple of years

Any help much appreciated