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 ('e70e5243b2fa55c0f2cb96ec9b5305dd', -1, 1416673286, 1416673286, '36a67a56', -1, 0, 0)

Line : 187
File : sessions.php