Ubuntu 20.04 Lutris Certificate issue RUN -> sudo update-ca-certificates --fresh; export SSL_CERT_DIR=/etc/ssl/certs;

FIX for Ubuntu 20.04 Lutris Certificate issue.txt

Run these commands on terminal 
sudo update-ca-certificates --fresh
export SSL_CERT_DIR=/etc/ssl/certs

# when faced with this issue

INFO     2020-06-23 18:33:48,649 [application.do_command_line:245]:Running Lutris 0.5.6
INFO     2020-06-23 18:33:48,650 [startup.check_driver:54]:Using NVIDIA drivers 440.64 for x86_64
INFO     2020-06-23 18:33:48,650 [startup.check_driver:60]:GPU: Quadro M2000M
INFO     2020-06-23 18:33:48,650 [startup.check_driver:77]:GPU: 10DE:13B0 17AA:222E using nvidia drivers
INFO     2020-06-23 18:33:48,650 [startup.check_driver:77]:GPU: 8086:191D 17AA:222E using i915 drivers
INFO     2020-06-23 18:33:48,720 [startup.check_vulkan:132]:Vulkan is supported
INFO     2020-06-23 18:33:48,721 [dxvk.get_dxvk_versions:22]:Updating DXVK versions
DEBUG    2020-06-23 18:33:48,934 [http.get:65]:GET https://lutris.net/api/runtime
DEBUG    2020-06-23 18:33:48,934 [store.get_missing_media:212]:Requesting missing icons from API for 3030-deathwar-redux-a-space-odyssey
DEBUG    2020-06-23 18:33:48,935 [http.get:65]:GET https://lutris.net/api/games
ERROR    2020-06-23 18:33:49,052 [api.get_game_api_page:127]:Unable to get games from API: Unable to connect to server https://lutris.net/api/games: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>
ERROR    2020-06-23 18:33:49,218 [runtime._iter_remote_runtimes:156]:Failed to get runtimes: Unable to connect to server https://lutris.net/api/runtime: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>
ERROR    2020-06-23 18:33:49,353 [dxvk.get_dxvk_versions:31]:<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)>