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 ('f3aa39b4d35a44e24d2dca8a3a3f9141', -1, 1714454026, 1714454026, '12760cde', -4, 0)

Line : 158
File : sessions.php