Fix for load_user function in modules/Users/Users.php
Second parameter $dieOnError for requireSingleResult() function is wrong.
in modules/Users/Users.php there was thsi code:
$query = "SELECT * from $this->table_name where user_name=?";
$result = this->db->requireSingleResult(query, array($usr_name), false);
In include/database/pearDatabase.php the function requireSingleResult()is defined as:
function requireSingleResult($sql, dieOnError=false,msg='', $encode=true)