Estou com o seguinte erro em meu site:

Warning: mssql_query() [function.mssql-query]: message: Could not find stored procedure 'web_auth'. (severity 16) in D:\web\localuser\muopacity\www\teste\teste\_class\ class.mssql.php on line 12

Warning: mssql_query() [function.mssql-query]: Query failed in D:\web\localuser\muopacity\www\teste\teste\_class\ class.mssql.php on line 12

Warning: mssql_num_rows(): supplied argument is not a valid MS SQL-result resource in D:\web\localuser\muopacity\www\teste\teste\_class\ class.login.php on line 29

Como resolvo ?