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 ('b0a21453f32f2dda304968c02c379139', -1, 1495995799, 1495995799, '3651459f', 6, 0, 0)

Line : 187
File : sessions.php