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 ('a07101566ecf5e553da686c8ab10c323', -1, 1713526134, 1713526134, '12776f09', -10, 0, 0)

Line : 187
File : sessions.php