Yourlicense key is missing. Please provide yourlicense key

[Oldschool.co.nz]

Hi, I purchased my 6 monthly license key a month or so back and I entered it in the appropriate area.

Now when I log on to the Admin CP it randomly tells me I need to enter it again as if I never entered it in the first place.

I've entered it each time in case I have not been doing it right but I cannot find any thing else I should be doing.

This has probably happened 5 times in the last 4 weeks. 

Any help would be appreciated.

[Mark H]

Please make sure you are using the latest version (3.4.9 or 4.1.8.1). Upgrade if necessary.

If you are using the latest version, and that keeps happening, please file a ticket to Support.