Plesk licensing scheme has been changed: MagicSpam for Plesk 12 for VPS license type has been added.
The old license type for
MagicSpam which is available for Plesk 10 and later licenses is no longer valid and will not be possible to provision as this was deprecated and dropped by the vendor.
Is it possible to add MagicSpam for Plesk 12 for VPS license type for Plesk 10 and later license classes?
That is possible since OBAS 4.5.7 release (software issue PBAS-30462).
Please upgrade to 4.5.7 as described in How to upgrade OBAS system to the latest available version.
Workaround for 4.5.6 and older versions
Since the hotfix requires complex manipulations with the database, it is recommended to contact Odin Technical Support for assistance.