Hi! Welcome!
ssh root@<server-ip-address>wget https://packages.erlang-solutions.com/erlang-solutions_2.0_all.deb && sudo dpkg -i erlang-solutions_2.0_all.debsudo apt-get updatesudo apt-get install esl-erlangsudo apt-get install elixirgit clone https://github.com/your_appcd your_appnano .envand insert all your environment variables.
Problem 1: unable to connect to rediss://
As stated in the docs, make sure customer_hostname_check is given.
References