phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a08fba878a2b64d7b0a0e4de9e6f8b52', -1, 1715229697, 1715229697, '038eade3', 2, 0, 0)

Line : 189
File : sessions.php