can either of u'll do the foll:
1. Enable backtrace (administer civicrm >> Global settings >> debugging)
2. do the same steps to reproduce the above error.
3. You'll see a trace of functions and files, can you copy-and-paste that trace here
thanx
lobo
Here's mine:
backTrace
<snip>administrator/components/com_civicrm/civicrm/CRM/Core/Error.php, backtrace, 159
, handle,
<snip>administrator/components/com_civicrm/civicrm/packages/PEAR.php, call_user_func, 931
<snip>administrator/components/com_civicrm/civicrm/packages/DB.php, PEAR_Error, 968
<snip>administrator/components/com_civicrm/civicrm/packages/PEAR.php, DB_Error, 564
<snip>administrator/components/com_civicrm/civicrm/packages/DB/common.php, raiseError, 1903
<snip>administrator/components/com_civicrm/civicrm/packages/DB/mysql.php, raiseError, 898
<snip>administrator/components/com_civicrm/civicrm/packages/DB/mysql.php, mysqlRaiseError, 327
<snip>administrator/components/com_civicrm/civicrm/packages/DB/common.php, simpleQuery, 1216
<snip>administrator/components/com_civicrm/civicrm/packages/DB/DataObject.php, query, 2421
<snip>administrator/components/com_civicrm/civicrm/packages/DB/DataObject.php, _query, 442
<snip>administrator/components/com_civicrm/civicrm/CRM/Core/DAO.php, find, 723
<snip>administrator/components/com_civicrm/civicrm/CRM/Member/Page/MembershipType.php, getFieldValue, 177
<snip>administrator/components/com_civicrm/civicrm/CRM/Member/Page/MembershipType.php, browse, 130
<snip>administrator/components/com_civicrm/civicrm/CRM/Core/Invoke.php, run, 219
<snip>administrator/components/com_civicrm/admin.civicrm.php, invoke, 77
<snip>administrator/components/com_civicrm/admin.civicrm.php, civicrm_invoke, 45
<snip>/libraries/joomla/application/component/helper.php, require_once, 162
<snip>administrator/includes/application.php, renderComponent, 136
<snip>administrator/index.php, dispatch, 67
<snip>administrator/index2.php, include, 14