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 ('b6dd8ef1a85fdb76fdb1b890e6841495', -1, 1714642861, 1714642861, '03805eab', 0, 0)

Line : 158
File : sessions.php