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 ('80b5dcb1b1d5e7b1f4db9457b89b6a5b', -1, 1714717718, 1714717718, '038a8a90', 17, 0)

Line : 158
File : sessions.php