I have the same issue as reported here:
Urgent! Errror with WpdiscuszHelperUpload.php
I am using paid 'wpDiscuz - Media Uploader' plugin which is currently expired, but which I can keep using.
When I update to latest 'wpDiscuz' plugin certain pages of my blog do not work anymore because of this issue.
"PHP Fatal error: Uncaught Error: Using $this when not in object context"
Apparently the issue is solved in latest update of the 'wpDiscuz - Media Uploader' plugin. I can upgrade to latest 'wpDiscuz - Media Uploader' plugin when I buy a new registration for 1 year.
Issue is caused by update of 'wpDiscuz' plugin because when I revert to old version of the 'wpDiscuz' plugin I do not have the issue.
In my opinion an upgrade of the free 'wpDiscuz' plugin should never break a paid plugin. Please solve this is in the free 'wpDiscuz' plugin itself instead of 'forcing' me to buy a new registration.
