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 ('52da03c87cc545e6f43843bed8903648', -1, 1713591183, 1713591183, '12777d07', -11, 0, 0)

Line : 187
File : sessions.php