This is generally the sign of an ampersand that was not properly escaped for inclusion in an attribute, in a href for example.
![]() | <a href="index.php?a=1&b=2" title="title & others"> |
![]() | <a href="index.php?a=1&b=2" title="title & others"> |
You will need to escape all instances of '&' into '&'.