The error message related to PD 6662 that may appear in some Ajax devices such as AJ-KEYPAD keypads or AJ-HOMESIREN indoor sirens:
This error informs us about non-compliance with UK standards and norms. This is not important in Spain and other countries and you can deactivate these services so that this message disappears and continue to comply with the European standard EN 50131.
To do so, in the Hub configuration, under Service, the following options will be deactivated: