Weird question mark symbols appearing instead of input text

[dostee-hemin]

I have been trying to create a TTS model for the Kurdish language and the training seemed to go fine, but when I make the model synthesize new text, I get a weird error. For example, if my input text is: "سلاو هاورێ ۆن بۆن های", when I run the command I get this in the command line:

Text: ???? ????? ?? ??? ???
Text splitted to sentences.
['?', '??? ?', '???? ?? ???', '???']

This makes the whole program crash and it throws an error. I found out that the variable that stores my input text is args.text in the tts\TTS\bin\synthesize.py file. For some reason, it converts everything I write into question marks. When I hard code my sentence into the code rather than using args.text, the program works fine. What's the problem here? and how do I fix it so that I won't have to hard code my text into the program?