The updater doesn't update anymore

Each time I launch the updater, it says that the following apps are available :

• 7-Zip 19.00
• McAfee Stinger 12.1.0.3047
• Mozilla Firefox 65.0.1
• Notepad++ 7.6.3

When it finishes, the apps are still the old version. The updater seems to work on the surface: it's downloading, the progress bars are filling, etc. But no work is done in the end.

Is there a way to enable logs to see what happens behind the scene?