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 ('b7badc5eaa2e910be434b4167d66b6d3', -1, 1750299812, 1750299812, 'd849d8d1', 2, 0, 0)

Line : 190
File : sessions.php