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 ('9f5da27512f80a4568e97b32cbda5a38', -1, 1481359660, 1481359660, '36ccf7cd', 1, 0)

Line : 158
File : sessions.php