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 ('3a138d0fd1db40f9e39c41595458cd2f', -1, 1550653388, 1550653388, '36aded98', -4, 0, 0)

Line : 187
File : sessions.php