Onsite, Online or Classroom training. Training when roomMaster is first installed, refresher training or training new staff. Often competency declines with staff turnover and staff members training new staff (if at all). 

Review roomMaster setup: Roomtypes, Rates, Accountcodes, accuracy of reporting , Procedures. Often a quick look at the structure and use of the system, obvious once we look at the database, can give priceless insights.

How can I protect against ransom-ware like wanna cry, Petya and other malware? Backup, Updates, Antivirus, Restore

The most important part of the roomMaster installation is the infrastructure it runs on. In particular in developing countries at times it can be very difficult finding competent organizations to install the required infrastructure (Cabling, Power, Network devices) properly.