Images with Special Characters

Dear Friends,

The WP Smush PRO is not smushing images/files that has special characters at the filename.

It returns with an error, for example: Could not find /var/www/mestre-cervejeiro.com/wp-content/uploads/2016/10/Conheça-as-cervejas-da-Kasteel_Blond.jpg

Please could you help me?

Thank you,

Daniel W.