Problem
My wpsolr went back to the free version. How do I activate my license back ?
Resolution
If you’ve just installed WPSOLR for the first time, follow the instruction to activate your license : How to activate a license pack ?
If you’ve upgraded WPSOLR, you just need to confirm your license by clicking on the button ‘Verify’.

Explanation
Each time you upgrade your license, you need to reactivate (“verify”) it.