phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpBB/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, session_admin) VALUES ('05910228e61b3eb1a9f8fa3dfe64ea41', -1, 1462493024, 1462493024, '36eb19ce', 48, 0, 0)

Line : 187
File : sessions.php