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 ('12ce2900a88a7d8546d36caac003a4a8', -1, 1503352157, 1503352157, '36e12f7c', -1, 0, 0)

Line : 172
File : sessions.php