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 ('729fcf25f78a99d1039121753b2ceb59', -1, 1709168680, 1709168680, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php