Symptoms
After a reinstallation of RoundCube, you may experience a 500 error when accessing RoundCube via Webmail.
Description
When reinstalling RoundCube, some configuration files may no longer be present, resulting in the 500 error.
Workaround
The following commands can help regenerate the configuration files when necessary:
RoundCube with MySQL:
/usr/local/cpanel/bin/update-roundcube-db --force
RoundCube with SQLite:
/usr/local/cpanel/bin/update-roundcube-sqlite-db --force