Lightburn stopped working

I had Lightburn working in my Dell laptop for some time now. I did second copy in my HP desktop and in three days or less it crashed into no recovery Zone. so I installed window 10 on that pc with a new HD.
my freind gave me his Toshiba A10 laptop. I installed Lightburn on it and ran for 30 days ok.
Then it came up with the payment again. So I tried the numbers for the one I paid for and it did not take. now both machine are asking for payment and the numbers are ng

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