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 ('a5cf1525cc36e86254e0192e969838e4', -1, 1714321259, 1714321259, '0391c947', -10, 0)

Line : 158
File : sessions.php