malformed query for civicrm/contact/add

At this page, while saving change to contact (adding contact to new
group), http://dev1.greenparty.ca/civicrm/contact/add, I encountered
the following error:

Sorry. A non-recoverable error has occurred.

Database Error Code: Unknown column 'k2c1l6' in 'where clause',
1054

Return to CiviCRM menu.

error

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -19
[message] => DB Error: no such field
[mode] => 16
[debug_info] => SELECT latitude, longitude FROM zipcodes WHERE zip
= k2c1l6 [nativecode=1054 ** Unknown column 'k2c1l6' in 'where clause']
[type] => DB_Error
[user_info] => SELECT latitude, longitude FROM zipcodes WHERE zip =
k2c1l6 [nativecode=1054 ** Unknown column 'k2c1l6' in 'where clause']
[to_string] => [db_error: message="DB Error: no such field"
code=-19 mode=callback callback=CRM_Core_Error::handle prefix=""
info="SELECT latitude, longitude FROM zipcodes WHERE zip = k2c1l6
[nativecode=1054 ** Unknown column 'k2c1l6' in 'where clause']"]
)