As people have explained to you already, the hightower 32 eu server was doing poorly. It was doing ok up until the week I was looking at it.
You can see the graph of the population here by double clicking on the graph to zoom out and dragging your mouse over the region you want to zoom into.
https://stats.skial.com/#server/104
You can see on Tuesday May 2 and May 3, the server barely filled. I thought the server was starting to die out. In the following weeks after we added x10, it did worse than before May 2, but now it looks like it is growing.
We added x10 to Hightower US and it revived the server so I hoped it would do the same to the EU one.
https://stats.skial.com/#server/17
I can try changing it back, but if the server looks like its going to be like May 2 and May 3, it will be better to keep it x10.