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) VALUES ('d7dd8123ba38bdb77927dc7a1151fffc', -1, 1726880563, 1726880563, '038e88e2', 7, 0)

Line : 158
File : sessions.php