phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './america_alabama/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 ('caf95c95ba32c9e80d7504a1cab46ed9', -1, 1432304937, 1432304937, '17164feb', -4, 0, 0)

Line : 187
File : sessions.php