phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3f5773eb7243d0cb9b793f20c924a2d0' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('3f5773eb7243d0cb9b793f20c924a2d0', -1, 1769973315, 1769973315, 'd849d837', 9, 0, 0)

Line : 187
File : sessions.php