Achim: Frage zu diesem Error_code aus PEAR::DB

Hallo,

kann mir emand helfen diese Error-Ausgabe zu erklären

Das Ganze erfolgt mir nach dem
 $this->dbcon->execute

bei connect erhalte ich noch keinen fehler

Leider habe ich mit OOP recht wenig ahnung umd die folgende ausgabe zu
entschlüsseln um auf den fehler zu kommen

object(DB_Error)#5 (8) {
  ["error_message_prefix"]=>
  string(0) ""
  ["mode"]=>
  int(1)
  ["level"]=>
  int(1024)
  ["code"]=>
  int(-7)
  ["message"]=>
  string(18) "DB Error: mismatch"
  ["userinfo"]=>
  string(126) "select firstname, lastname, Firma, cust_nr, Postcode,City,
Telefon ,Mobil, id  from costumers where firstname
  like '%thom%'"
  ["backtrace"]=>
  array(7) {
    [0]=>
    array(6) {
      ["file"]=>
      string(30) "/usr/local/lib2/lib/php/DB.php"
      ["line"]=>
      int(748)
      ["function"]=>
      string(10) "PEAR_Error"
      ["class"]=>
      string(8) "DB_Error"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(5) {
        [0]=>
        string(18) "DB Error: mismatch"
        [1]=>
        int(-7)
        [2]=>
        int(1)
        [3]=>
        int(1024)
        [4]=>
        string(126) "select firstname, lastname, Firma, cust_nr,
Postcode,City, Telefon ,Mobil, id  from costumers where firstname
  like '%thom%'"
      }
    }
    [1]=>
    array(6) {
      ["file"]=>
      string(32) "/usr/local/lib2/lib/php/PEAR.php"
      ["line"]=>
      int(536)
      ["function"]=>
      string(8) "DB_Error"
      ["class"]=>
      string(8) "DB_Error"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(4) {
        [0]=>
        int(-7)
        [1]=>
        int(1)
        [2]=>
        int(1024)
        [3]=>
        string(126) "select firstname, lastname, Firma, cust_nr,
Postcode,City, Telefon ,Mobil, id  from costumers where firstname
  like '%thom%'"
      }
    }
    [2]=>
    array(6) {
      ["file"]=>
      string(37) "/usr/local/lib2/lib/php/DB/common.php"
      ["line"]=>
      int(500)
      ["function"]=>
      string(10) "raiseError"
      ["class"]=>
      string(9) "DB_mysqli"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(7) {
        [0]=>
        NULL
        [1]=>
        int(-7)
        [2]=>
        NULL
        [3]=>
        NULL
        [4]=>
        string(126) "select firstname, lastname, Firma, cust_nr,
Postcode,City, Telefon ,Mobil, id  from costumers where firstname
  like '%thom%'"
        [5]=>
        string(8) "DB_Error"
        [6]=>
        bool(true)
      }
    }
    [3]=>
    array(6) {
      ["file"]=>
      string(37) "/usr/local/lib2/lib/php/DB/common.php"
      ["line"]=>
      int(991)
      ["function"]=>
      string(10) "raiseError"
      ["class"]=>
      string(9) "DB_mysqli"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        int(-7)
      }
    }
    [4]=>
    array(6) {
      ["file"]=>
      string(37) "/usr/local/lib2/lib/php/DB/common.php"
      ["line"]=>
      int(949)
      ["function"]=>
      string(19) "executeEmulateQuery"
      ["class"]=>
      string(9) "DB_mysqli"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        int(0)
        [1]=>
        array(1) {
          [0]=>
          bool(false)
        }
      }
    }
    [5]=>
    array(6) {
      ["file"]=>
      string(36) "/www2/htdocs/class/datenbank.inc.php"
      ["line"]=>
      int(76)
      ["function"]=>
      string(7) "execute"
      ["class"]=>
      string(9) "DB_mysqli"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        int(0)
        [1]=>
        array(1) {
          [0]=>
          bool(false)
        }
      }
    }
    [6]=>
    array(6) {
      ["file"]=>
      string(35) "/www2/htdocs/frames/cust_search.php"
      ["line"]=>
      int(68)
      ["function"]=>
      string(6) "select"
      ["class"]=>
      string(7) "base_db"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        &string(126) "select firstname, lastname, Firma, cust_nr,
Postcode,City, Telefon ,Mobil, id  from costumers where firstname
  like '%thom%'"
        [1]=>
        &array(1) {
          [0]=>
          bool(false)
        }
      }
    }
  }
  ["callback"]=>
  NULL
}

Vielen Dank schonmal

Gruss Achim