Error 500

Why you have got the 500 error when you install the app?

Because your server missed one or more extensions you can login in your cPanel and check them or you can contact with your hosting provider to enable them for you

Requirements:

PHP Version (7.2.x or 7.3.x)
OpenSSL PHP Extension
PDO PHP Extension
Mbstring PHP Extension
Tokenizer PHP Extension
XML PHP Extension
Ctype PHP Extension
JSON PHP Extension
Exif Extension
PHP Fileinfo Extension