I am trying to add a custom title to all threads on my MYBB site by editing showthread template in mybb templates and styles.
I am adding my custom title between this code


{$thread['subject']} - Custom Title

It appears on top of the file.
After I save the file all threads show a blank page. I mean they don't load at all.
If you can help me fix it I give you 5 $ by paypal.