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 ('3b5b63c602878a5c2a6c114b6b575eac', -1, 1713257863, 1713257863, '038df4c9', -1, 0, 0)

Line : 187
File : sessions.php