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 ('a8d9080ea21ef5da526cce2e532a5c11', -1, 1753605347, 1753605347, 'd849d85f', 2, 0, 0)

Line : 187
File : sessions.php