phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '81b27aabb1db09c21d5d9004af3a3136' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('81b27aabb1db09c21d5d9004af3a3136', -1, 1766235555, 1766235555, '0aff0001', 142, 0, 0)

Line : 199
File : sessions.php