warning "free memoryspace is less then 10%" in My computers with 16GB internal memory ?

One of my computers in the overview of My Comuters in Teamviewer has a warning "free memoryspace is less then 10%". This is not what the computer itself shows on information. only 50% of its RAM was in use.

I upgraded nevertheless the RAM to 16GB and the warming in teamviewer is still there als after "renew"

What's this warning about? When is it gone? Or do I have to ignore it?

Greetings, Ruud