Sen2cor DEM **Without SRTM**

Hello all,
I’ve read the posts regarding how to use specific DEMs in Sen2cor.
In my case, unfortunately, there is no SRTM for my Region of Interest - the arctic.
I changed all the parameters and even created a polygon with the same dimension of a SRTM tile that included my DEM but didn’t work.

Anyone had the same problem?

Thank you very much