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 ('eb4036bd92ab4657d1914ca8968b09c6', -1, 1750042710, 1750042710, 'd849d897', 31, 0, 0)

Line : 190
File : sessions.php