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 ('5133b1721277d9f2e275c8030734049b', -1, 1638584889, 1638584889, '36e361db', 46, 0, 0)

Line : 187
File : sessions.php