You have saved the file with the wrong encoding. Open the .srt file with Notepad (Windows) or TextEdit (Mac). Click "Save As" and change the encoding to UTF-8 . Most Western rips use UTF-8, but some older Scene releases use ANSI.
Ultimate Guide to Watching Spartacus Season 3 with English Subtitles Spartacus English Subtitles Season 3
I can provide specific troubleshooting steps or direct links based on your setup. Share public link You have saved the file with the wrong encoding