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 ('ccb25edb04846f43969845acbd266948', -1, 1714646455, 1714646455, '12e11f9f', 2, 0)

Line : 158
File : sessions.php