GSX addon manager activation key failing

[FGTRN]

Hi,
Has been quite a while since I didn't use P3D (MSFS2020)
Today reinstalled GSX and GSX 2 on my P3DV5 but after click register serial on addon manager resulted in message Esellerate error code 0x80004005 trying to activate GSX on both items.
Hope you may help on this issue.
Many FSDT sceneries to be installed probably prone to same trouble.
Kind regards,
Jacques

[FGTRN]

Hi,
Successful activation through FSDT Universal Installer.
Item closed.
Good day guys.
Jacques