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 ('b4c20f91a9557da58ec47b9eb30e1f6e', -1, 1553601927, 1553601927, '36a68554', -2, 0, 0)

Line : 187
File : sessions.php