Ink, Annotations, and highlight not working

I am using the RadaeePDF (PDFViewer v3.3) reading PDF files from my android app. Before March everything was working fine(ink, annotations, highlight). Nut suddenly it stopped wowking this month. I have purchased a premium license. Modified my code but still not able to shoot out the problem.
My package name is com.hanker.flipbook


What could be the problem ??
Please Help

Hi,
can you please give us more details?
Have you changed your package name or it's the same of the premium license?
The package name must be the same!