Fatal error clicking forum headers when not logged in

[ByteMarks]

Not sure if anyone else is experiencing this but recently I get the error below if I click on any of the forum headers, e.g. Excel General etc
It only happens when I'm not logged in.


Fatal error: Uncaught Error: Undefined constant "flase" in /home/eforum/public_html/includes/class_core.php(4693) : eval()'d code:80 Stack trace: #0 /home/eforum/public_html/includes/class_core.php(4693): eval() #1 /home/eforum/public_html/includes/class_core.php(4665): vB_Template->render_output(false) #2 /home/eforum/public_html/forumdisplay.php(1324): vB_Template->render() #3 /home/eforum/public_html/vbseo.php(1216): require('/home/eforum/pu...') #4 {main} thrown in /home/eforum/public_html/includes/class_core.php(4693) : eval()'d code on line 80

[Pepe Le Mokko]

The SW of this forum is getting prehistoric, perhaps Alzheimer?