Description: Required registration information not recorded

Solution (1): Can happen when a very old .cm file is first run and the user selects "trial installation."  This triggers an update of the .cm file to a later version and the registration step is potentially omitted.  The solution is for the developer to send them a new protected program and .cm file of at least version 52.
Solution (2): If the <program name>.cm.ini file contains

[Main]
Trial=Neither
ActivationByProductKey=Neither
ProductKey=a valid Licence Key

before the licence is activated, and CMServer is not running on the network, then the licence will be unable to activated and will cause an error 738.
The ini file options listed above are incompatible with each other, as they tell the protection runtime that it may not use a licence key (thereby implying network client activation is required), then provides a licence key.