Ojs 3.2.1 Plugin update issue

I have today updated from OJS 3.2.03 to OJS 3.2.1
When I tried to install plugins in Plugin galley, it was showing can be updated. But on updating it turns out as “Null” in notification.
Any solution for that.

Best Regards

The same issue here: Plugin Issue After upgradation of 3.2.03 to

Please visit the link for changing code

Thanks asmecher