No access to http://divorcesupport.nl/wp-content/themes/enfold/framework/

Hi!
I hope someone can help. I use the Enfold theme and I am a complete beginner with no html knowledge… In Google Search Console the following crawl mistake comes up for http://divorcesupport.nl/wp-content/themes/enfold/framework/ : <<access denied – error 403>>. I have checked with my provider if the folder is protected but it is not. I have checked the robot.txt and access is not denied. What can be wrong? And is this a big problem with regards to Google not being able to crawl the URL?

The strange thing is that my colleque also uses Enfold and there is no problem for his website. It opens correctly. Please see http://mediation-in-het-gooi/themes/enfold/framework. How can it be that my website (also Enfold) comes back with a mistake while his URL works correctly?

I can be completely wrong but can it be that there is no index file in the folder? If so, I have no idea how to solve this. But then again, WordPress and the Enfold theme generate all the content. If my colleque and I are using exactly the same WordPress version and the same theme, then it shouldn’t be possible that I am missing the index file while he is not?

Please help. Thanks in advance.

Lennard