How to echo a plugin’s function into a template?

You can use below code.

get_the_client(get_the_ID());
get_the_company(get_the_ID());
get_the_website(get_the_ID());

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)