Is subdownloader.net Safe?

I downloaded the free free application from this website. Then I paid and installed premium full version. I tried to search the subtitles for my movies. Because the program gave me no subtitle, I visited ***** and I manually found a subtitle, which it would have to be found with application. When I searched the features of the program I got two warnings: 1. The logfile 'C:\Program Files (x86)\SubDownloader2\run.exe.log' could not be opened: [Errno 13] Permission denied: 'C:\\Program Files (x86)\\SubDownloader2\\run.exe.log' And more important: 2. The server is momentarily unavailable. Please try later. I tried later and many times, every day, but nothing changed. The truth is that server is never available!! I sent my complaints to two email accounts published on subdownloader website: ***** and ***** , but I never received an answer or help, while https://subdownloader.net was active. It's my moral duty that I warn potential buyers to think carefully and don't pay for premium version to avoid wasting money and time.