expression in CONTAINS or MATCHES was a Boolean

  Explanation:  The Boolean evaluator was processing an expression
  or  sub-expression  of the form "A CONTAINS B" or "A MATCHES B".
  Either the "A" or the "B" expression was a Boolean of  the  form
  "NOT X", "X EQ Y", "X NE Y", "X LT Y", "X GT Y", "X LE Y", "X GE
  Y", "X CONTAINS Y", or "X MATCHES Y".  Neither side of  CONTAINS
  and MATCHES expressions are allowed to be Boolean expressions.

  User Action:  Rewrite the expression to have the proper format.