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 ('a9a54e88f6a6a7ddb544b182be7cdbdb', -1, 1516636954, 1516636954, '36e2b3f7', -4, 0)

Line : 158
File : sessions.php