Some files and folders are still on the server after removing IMSS.
This happens because the installation script for IMSS 7.1 does not completely remove the IMSS files. It leaves the PostgreSQL database, installation logs, and some files created by the IMSS processes, like backup copies of the config files, queues, etc.
To completely remove the IMSS traces or remnants, run the following commands after uninstalling all components:
rm -rf /opt/trend
rm -rf /var/imss