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 ('ad6fa2d11606ee4d445c228386da307d', -1, 1711620960, 1711620960, '36dd6e57', -4, 0, 0)

Line : 187
File : sessions.php