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 ('08cc0e78094b6ac1a2c60907ea8591a9', -1, 1753616059, 1753616059, 'd849d85f', 2, 0, 0)

Line : 187
File : sessions.php