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, session_admin) VALUES ('0e9c2d5ea58edbb3737093704c4b8519', -1, 1708802768, 1708802768, '03eb916c', -10, 0, 0)

Line : 187
File : sessions.php