White screen on load

Hello, I´ve an issue with a local installation using MAMP and enfold 4.3.1 that I´m trying to update my webpage.

I´ve imported the construction demo but when I try to visit the site it´s all white… The PHP.log says this:

[09-May-2018 06:14:16 UTC] PHP Warning:  file_get_contents(C:\MAMP\htdocs/): failed to open stream: No such file or directory in C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php on line 322
[09-May-2018 06:14:16 UTC] PHP Fatal error:  Uncaught Error: Cannot use object of type WP_Error as array in C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php:329
Stack trace:
#0 C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php(275): aviaAssetManager->get_file_content('', 'js', false)
#1 C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php(124): aviaAssetManager->get_file_data('js', 'avia-head-scrip...', Object(WP_Scripts), Array)
#2 C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php(99): aviaAssetManager->merge('js', 'avia-head-scrip...', Array)
#3 C:\MAMP\htdocs\wp-includes\class-wp-hook.php(286): aviaAssetManager->try_minifying_scripts('')
#4 C:\MAMP\htdocs\wp-includes\class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#5 C:\MAMP\htdocs\wp-includes\plugin.php(453): WP_Hook->do_action(Array)
#6 C:\M in C:\MAMP\htdocs\wp-content\themes\enfold\config-templatebuilder\avia-template-builder\php\asset-manager.class.php on line 329

How can I fix it?
Thanks!