Solution from here:
If you get another error –Stremio: error while loading shared libraries: libcrypto.so.1.1: cannot open shared object file: No such file or directory. Then to solve it, we need to download two more packages manually, here is that.
wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1-1ubuntu2.1~18.04.21_amd64.debsudo dpkg -i libssl1.1_1.1.1-1ubuntu2.1~18.04.20_amd64.debwget http://archive.ubuntu.com/ubuntu/pool/multiverse/f/fdk-aac/libfdk-aac1_0.1.6-1_amd64.debsudo dpkg -i libfdk-aac1_0.1.6-1_amd64.debRun update and start the App again, this time you will be able to start it.
sudo apt update