phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fff9d640d5cc3f5c6a870c64eb7453ea' 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 ('fff9d640d5cc3f5c6a870c64eb7453ea', -1, 1714762171, 1714762171, '038ff453', -4, 0, 0)

Line : 187
File : sessions.php