Change from this:
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When you add this in sys and start nextgen, you must turn it off and on again and you will see data for Slovenia
You need to this only the first time after you change sys, after this all will work with no problem.
And my on-line traffic works.
I have absolutely nothing (no licenses or anything else) in the Content/TMC folder.
In the UX folder I have both tmc.zip and tmc_online.zip present, but no other on-line services (weather, parking, fuel prices, connected error handling, etc) because they do not work in my area anyway (a region thing).