phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8715cb663a506ee2d9db5d542e5e5ad' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8715cb663a506ee2d9db5d542e5e5ad', -1, 1715731402, 1715731402, '03865fde', 0, 0, 0)

Line : 187
File : sessions.php