Download SRTM error

Hi at all,
I’m trying to use Download SRTM tiles command, but after fill up all the input parameters (refernce images, tiles dir) and select to Download the corresponding tiles, I get the following error message:

2020-04-10 10:11:09 (FATAL) DownloadSRTMTiles: itk::ERROR: Curl Error : Problem with the SSL CA cert (path? access rights?)

I guess I need to setup a file or env variable with user account, right?
Any hint about?

Best,
franz

Pardon I’ve missed the following: OTB 7.1 on Ubuntu 18:04

TIA
Best,
franz