phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'dffaf1cc84cf0207bc6ceb2dc0078d6c' 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 ('dffaf1cc84cf0207bc6ceb2dc0078d6c', -1, 1715778314, 1715778314, '0389b2d9', 0, 0, 0)

Line : 187
File : sessions.php