MS SQL Error when searching Admin Log

General Error
SQL ERROR [ mssqlnative ]

SQLSTATE: 42000 code: 8116 message: [Microsoft][SQL Server Native Client 10.0][SQL Server]Argument data type text is invalid for argument 1 of lower function. [8116]

SQL

SELECT COUNT(l.log_id) AS total_entries FROM phpbb_log l, phpbb_users u WHERE l.log_type = 0 AND l.user_id = u.user_id AND l.log_time >= 0 AND (LOWER(l.log_data) LIKE '%altair%' ESCAPE '\')

BACKTRACE

FILE: [ROOT]/includes/db/mssqlnative.php
LINE: 321
CALL: dbal->sql_error()

FILE: [ROOT]/includes/functions_admin.php
LINE: 2607
CALL: dbal_mssqlnative->sql_query()

FILE: [ROOT]/includes/acp/acp_logs.php
LINE: 130
CALL: view_log()

FILE: [ROOT]/includes/functions_module.php
LINE: 507
CALL: acp_logs->main()

FILE: [ROOT]/adm/index.php
LINE: 74
CALL: p_master->load_active()