Create A Forum - Support Forums

Hi CreateAForum Team,

I’m encountering a PHP syntax error on my forum when trying to access: (https://thevbi.createaforum.com/index.php?action=admin;area=membergroups)

**Admin → Membergroups → Edit Membergroup**

The error displayed is:

syntax error, unexpected variable "$last_online"

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Additional details:

- Forum URL: `https://thevbi.createaforum.com/index.php?action=admin;area=membergroups` 
- I have not installed any custom mods or themes recently. 
- I did not inject any custom PHP code into header/footer or other templates. 
- I have tried: 
  1. Clearing the file cache (via Admin → Maintenance) 
  2. Resetting to the default theme 
  3. Switching the board language (Vietnamese ↔ English) 
- The issue persists after all these attempts.

**What I suspect:** It seems like `$last_online` is being referenced in a template or backend PHP file (possibly in `Subs-Membergroups.php` or a similar core file), but in a way that's syntactically incorrect.

**Request:** Could you please investigate this issue on the server side and fix the template or PHP code that is causing this error? 

Thank you for your support. 
Best regards, 
[Hung Pham / Forum Admin, email: truongkinhthanhchovn@gmail.com] 
(thevbi.createaforum.com)