Software frequently gives the message program unregistered or lost registration

You try to use new version of plug-in.
Free update licenses are only for 12 months from date of purchase
licenses.
The cost of plug-in's upgrade is half of current plug-in's cost.
Now it is 14 USD for 1 license.
Please write me quantity of licenses which you want to update.
And I will make e-invoice for you.

What type and version plug-in you use?
Try to activate plug-in as in previous times.
Instructions for registration you can find here:
http://www.pushok.com/soft_how_to_register.php.
You should perform the steps described there.
In automatic mode, the registration happens automatically.
To register in manual mode you should do following steps:
1. Choose registration type as manualy and press button "Next".
2. Enter you login information and press button "Next".
3. The plug-in will generate program serial key automatically for you.
4. Copy program serial key.
5. Open link http://pushok.com/user_view_programs.php in your browser.
6. Click on the link "Generate Key".
7. Enter program serial key in the edit box and click on the link "Next".
8. Copy license key.
9. Enter received license key to edit field in plug-in and press "Next"
button.
10. Registration complete.