phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1a64d2e83942ee58b573d48f1627f7b7' 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 ('1a64d2e83942ee58b573d48f1627f7b7', -1, 1731818833, 1731818833, '0aff0001', 34, 0, 0)

Line : 199
File : sessions.php