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 ('91ca65d9a7963221c5b6cac16ea10d0a', -1, 1432792272, 1432792272, '36574895', 11, 0, 0)

Line : 187
File : sessions.php