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 ('250164b565a7a712950d76f4b44de63c', -1, 1713295807, 1713295807, '038fa8ac', -4, 0, 0)

Line : 187
File : sessions.php