Every time I open Lightroom, NLP asks me to enter a license. I used it for 2 months without problems, and all of a sudden, I open Lightroom, enter a license, next time I open it it asks for a license again. This also means that I have to “deactivate a device” (even though it the same laptop) every third time. I tried reinstalling NLP but that didn’t help
Welcome to the forum @Trbi0502
Have you looked at the user guide?
You can also look for posts about similar issues - search for “license @Nate” or similar terms.
Are you using macOS or Windows?