phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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 ('df4745306a0a5737d9e026671f1e6613', -1, 1487997309, 1487997309, '36a7b840', 0, 0, 0)

Line : 189
File : sessions.php