Hello @paoloadver279e 
 
This is Magento bug. Wrong paths are generated. Please follow below shared solution
 
Magento 2.3
#/vendor/magento/framework/View/Element/Template/File/Validator.php:114
the string
$realPath = $this->fileDriver->getRealPath($path);
to replace
$realPath = str_replace('\', '/', $this->fileDriver->getRealPath($path));
Magento 2.2
/vendor/magento/framework/View/Element/Template/File/Validator.php:113
code
protected function isPathInDirectories($path, $directories)
{
    if (!is_array($directories)) {
        $directories = (array)$directories;
    }
    foreach ($directories as $directory) {
        if (0 === strpos($this->fileDriver->getRealPath($path), $directory)) {
            return true;
        }
    }
    return false;
}
to replace
protected function isPathInDirectories($path, $directories)
    {
        $realPath = str_replace('\\', '/', $this->fileDriver->getRealPath($path));
        if (!is_array($directories)) {
            $directories = (array)$directories;
        }
        foreach ($directories as $directory) {
            if (0 === strpos($realPath, $directory)) {
                return true;
            }
        }
        return false;
    }
 
					
				
			
			
				
	Manish Mittal
https://www.manishmittal.com/