phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78484647429dd9df16d44f4f1b88e687' 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 ('78484647429dd9df16d44f4f1b88e687', -1, 1715685556, 1715685556, '038a43cb', -1, 0, 0)

Line : 187
File : sessions.php