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 ('3c759876ab0e934a64a571ac3e5f2648', -1, 1550399413, 1550399413, '3692e35c', 3, 0, 0)

Line : 187
File : sessions.php