Characters Broken

I have a heavy problem with how characters are showcased, I tried to fix it with localization add-ons but still no luck, please aid me.

In Mails, Export and User Mails, in pretty much anything i can input custom text, the characters appear broken.

Greek characters for instance appear like so: Νέος χρήστης στην σελίδα της

I know it’s not your priority to provide that kind of language support but i can see within the lines that the characters are indeed recognized just no showcased correctly, so it must be a minor fix, one that will aid me tons.

Thanks in advance,
Alexander Abulelas.

https://wordpress.org/plugins/pie-register/