phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1cefe0542ae90b0d46ad27e7f45df0cd', -1, 1730415029, 1730415029, '038fccf1', -1, 0, 0)

Line : 195
File : sessions.php