phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6715f7799ca843c9750e60d7aa96a3e0' 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 ('6715f7799ca843c9750e60d7aa96a3e0', -1, 1715777595, 1715777595, '1276d3c1', 23, 0, 0)

Line : 187
File : sessions.php