Doesn't wprk anymore

Since yesterday ad approx 6 p.m. (European Time) the script stopped working. I am trying to understand what may cause this but no official changelog has been posted by the site's owner so that implies that something might have expired in the code and/or something changed within the tampermonkey extension for firefox (here is the last official changelog: https://tampermonkey.net/changelog.php?version=4.7.5788&ext=fire)

Have the same problem with chrome