Repair Avast:
Control Panel> Program and Features (Add/remove program)>Select Avast> Select Repair. Reboot when completed https://www.avast.com/faq.php?article=AVKB204
If Repair doesn’t fix the problem, try the following:
Clean Install of Avast: https://goo.gl/4Ptzkf
I just purchased AVAST Premier (for 3 PCs). The computer on which I completed the transaction was activated immediately; however, when I try to use the code on another PC running the exact same software version, I receive this error message:
“The request cannot be processed at this moment, please try again later. (-1)”
A point to note, the Activation Code acts differently, it has a finite number of uses, where the actual license file license.avastlic doesn’t have that limitation. Assigning licenses from the my.avast.com account also shouldn’t have a limitation provided it doesn’t exceed the number of PC it is for.