I went ahead and created a ticket for you so we can discuss this issue. Ticket #15830 for your reference.
Estou com problemas semelhantes.
The logfile 'C:\Program Files (x86)\Raptr\raptrstub.exe.log' could not be opened: [Errno 13] Permissio deined: 'C:\\Program Files (x86)\\Raptr\\raptrstub.exe.log'
Willame d. Santos
Tente abrir Raptr no modo de administrador.
Try opening Raptr in Administrator mode.
I am having the same extact issue, was there ever a solution?