Add previous volume to statefulset, after upgrade kubernetes from 1.5 to 1.16.15 is failing

Hi I have a statefulset in my kubernetes cluster, I’m using it to manage wordpress, and I’m usign portworx to manage the storage, yesterday I did an upgrade from Kubernetes 1.14.10 to 1.15.0 and then to 1.16.15, all my pods are running fine, except the pods related to my blog.

I have to uninstall and reinstall portworx and looks fine, also I have updated the license (since in essential we can only use one), but I’m not able to mount again my volume.

The details are here:

Can you help me with that

Thank you so much