phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21de279e4ab96211df1b78d5f5df013b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('21de279e4ab96211df1b78d5f5df013b', -1, 1714223975, 1714223975, '0390ac73', -4, 0, 0)

Line : 187
File : sessions.php