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) VALUES ('252f9aca0b5c10a309a1638f8d65441a', -1, 1484578446, 1484578446, '36cd0dc8', 1, 0)

Line : 158
File : sessions.php