Blank page for some users

This morning, I tried again. No users can access to the UI (blank page).
For me, I was still able to see the interface but :

  • not in private navigation (blank page)
  • in normal navigation after I reload the cache, I can’t no more access to the UI.

It’s looks like the cache have an incidence

Can it come from my apache2 reverse proxy ?
Also when my automatic backup do their job, the server get down for some time. It wasn’t the case before.

When visiting the UI, I got this message in the javascript console : Uncaught SyntaxError: Invalid or unexpected token (at ParameterInputList-7aeef29e.js:53:9682)

Just saw this topic: Python node - #22 by jan
Hope it will help me solve this issue