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 ('a14a21a6e39d2f3f26d06269ab0cf3c0', -1, 1751763765, 1751763765, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php