Problem "server error 500"

I have a problem, I don’t know if you can help me if it’s up to you, the administrators or the community, it displays (uploads it without error) but the link when I open it says “server error 500”, I don’t know why? but I read and read and I don’t know what to do to make it work, obviously I’m doing something wrong or I have something wrong in the internal files but I don’t know what it could be!

the website or service is called: “django-armoniagroup”

Responded privately.