The serial number cannot be activated automatically

The following error message appears during activation of the program:

This serial number cannot be activated automatically. You may be are trying to activate the program on more computers than is allowed by the End User License Agreement.

This message appears when the serial number of the program you're trying to activate was temporary blocked. This can happen for several reasons:

• The serial number was activated very frequently.
• The serial number was used to upgrade a program.
• As a result of a violation of the end-user license agreement.

Please contact technical support for further information.