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 ('60ac1be52f44b07d491c6acf591d32e8', -1, 1714368187, 1714368187, '0395ffa2', 0, 0)

Line : 158
File : sessions.php