After the latest update last week enpass stopped working for me as well. Looking in /var/log/syslog (using command "sudo tail -f /var/log/syslog") while trying to start enpass I noticed the following error message:
/opt/enpass/Enpass: error while loading shared libraries: libxcb-xinput.so.0: cannot open shared object file: No such file or directory
Installing the required library using "sudo apt install libxcb-xinput-dev" solved the problem for me. However, I think this should be considered a bug since it required me to install a development library.