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 ('ba90e2994ffb3b40110e310116286ca5', -1, 1714744874, 1714744874, '12bc98a2', -9, 0)

Line : 158
File : sessions.php