Multisite compatibility

I would like to create a multisite with the Enfold theme.
The purpose is to have a mainsite and some third level like (Email address hidden if logged out) , (Email address hidden if logged out) and so on.
In particular I would like to use your template “App Demo”.
I did some preliminary tests before purchasing a new individual license, but I have seen a serious problem.
After installing the demo template the pages crash, showing an upper band reporting:

…public_html/wp-content/uploads/avia_fonts/Flaticon/charmap.php): failed to open stream: No such file or directory in /home/customer/www/grifofinance.com/public_html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/font-manager.class.php on line 477

…public_html/wp-content/uploads/avia_fonts/Flaticon/charmap.php’ for inclusion (include_path=’.:/usr/local/php73/pear’) in /home/customer/www/grifofinance.com/public_html/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/php/font-manager.class.php on line 477

then… scrolling, the header menu goes to the middle of the page.

Please, let me know if there is a solution (or was my fault) or if the specific template is not compatible with the multisite and then I have to look for another one among yours.

Thank you and have a nice day.