Access to vendor folder

[Admin]

Thank you, that helps to provide more information.

Looking at the autoload.php file, it tries to load the file autoload_real.php, but that file does not exist. Could you please try uploading it?

If you try it, you may see the file is deleted automatically. That’s because the file may be larger than 1 MB. If so, you may want to see this post for more information:

500 error

I’ve seen cases before where some of the Composer autoload files were so big, they exceeded the 1 MB size limit for PHP files, resulting in them being discarded on upload. You may want to check the size of the missing files on your own computer to see if they are bigger than 1 MB. If this is the issue, then you maybe able to reduce their site by reinstalling the Composer dependencies, but without the -o or --optimize-autoloader flags. The optimized autoloader file can be quite big, and you can…