phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpbb_1/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('f9f9444e6429fd6aef9db10cf160fe03', -1, 1417180073, 1417180073, '36c5d3c5', 5, 0)

Line : 158
File : /forum/includes/sessions.php