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 ('196bab40056f5a3a991a23176db1e947', -1, 1714030195, 1714030195, '0395d5d1', -10, 0, 0)

Line : 187
File : sessions.php