phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7ce0fb799e2531d9afca07762e27a968', -1, 1713586146, 1713586146, '127551f0', -10, 0, 0)

Line : 187
File : sessions.php