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) VALUES ('561f8858c99aa7cc588e3960b6d2dd86', -1, 1714617875, 1714617875, '12777d07', -11, 0)

Line : 158
File : sessions.php