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 ('eae8a027c82dcd6a31124b3d8865a369', -1, 1713421008, 1713421008, '038590c5', 7, 0, 0)

Line : 187
File : sessions.php