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 ('1c73cd2df54976c9dbd0688f21ff5cdc', -1, 1715023198, 1715023198, '12dc0d46', -9, 0, 0)

Line : 189
File : sessions.php