Errors in the web interface

Good afternoon, I have encountered a problem. I open the web interface and windows with errors pop up:

  • Failed to read clock data.
  • Failed to read PLC Switch data.
  • Failed to load LED configuration
    PLC: 750-8212 / FW: 04.04.03(26) / HW: 05


This could have happened after a FW update if your browser still has the old wbm in the cache. In most cases, it should be enough to clear the cache.

I noticed that this only happens when opening a page in http; when opening a page in https, there are no such messages.

Cache cleared but the error remained in http, no similar problem when I go under https