phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('770965420d5442b91e6ef9770a482c6a', -1, 1711655440, 1711655440, '54ccfc03', -4, 0, 0)

Line : 187
File : sessions.php