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 ('8507898309b3f8e2a24b2f1dfe71b46d', -1, 1713453257, 1713453257, '039368f8', -2, 0, 0)

Line : 187
File : sessions.php