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 ('f884979bdca92f7c2bee5054528a0ba5', -1, 1715057248, 1715057248, '1275e3c2', 0, 0, 0)

Line : 189
File : sessions.php