Thread:Project:Support desk/Fatal error: Using $this when not in object

MediaWiki 1.16.5

By clicking on "contribs" to see all user contributions the system returns the following:

Fatal error: Using $this when not in object context in ♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦/includes/Linker.php on line 220

If you click on "Show contributions of new accounts only" it works. The mistake appears only when searching by username. There were no changes done at the file "linker.php". I've searched, but I found nothing. :-(

I would appreciate it, if someone could help me.