Apt-get update filede

Setup, Configuration and Use Installation
1

Hi All
I try to update openehab but I when I type apt-get update I get

Err https://dl.bintray.com stable/main armhf Packages
server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

W: Failed to fetch https://dl.bintray.com/openhab/apt-repo2/dists/stable/main/binary-armhf/Packages server certificate verification failed. CAfile: /etc/ssl/certs/ca-certif

When I type

wget -qO - ‘https://bintray.com/user/downloadSubjectPublicKey?username=openhab’ | sudo apt-key add -
gpg: no valid OpenPGP data found_.

Any Idea ??

Regards

2 
 wget -qO - 'https://bintray.com/user/downloadSubjectPublicKey?username=openhab' | sudo apt-key add -
OK

I’m not getting the same issue, which means your device is unable to talk to the Bintray server. What does:

 wget 'https://bintray.com/user/downloadSubjectPublicKey?username=openhab'

output?