problem with Greek Magenta TTF fonts

I have a lot of files with old Greek magenta TTF fonts that do not support open type. When I open a file with COREL DRAW 2017 it opens the fonts but it doesn't change them.

Now that I bought in COREL DRAW 2019, when an archive opens, it changes my fonts to ARIAL, while 2017 doesn't.

Please would like your help with the fonts and how can I solve it ..

Thank you.