Mautic dont work anymore?

Hello … What happened was the following: After following the manual installation steps, using CPanel, I was finally able to log into the system as admin and see the resources. I tried to change the language, in the general settings and the error message 500 shown above on the print always appears.
The system does not allow the language to be changed, however, many other settings are accepted, others are not.
Tks, Viratraaz

I have used only english language. And it works perfectly fine. Which language were you trying?

Portuguese. But the others don’t work either. Only in English.