INSTALLATION OF DIRECTORY FAILED

Installed dashboard, job and experts, and Q&A no problem. But when trying to install directories I get install error: Installation of Directory failed. Most likely reason for this are wrong folder permissions of your wp-contents folder.

Also, I didn't realize my first post was public. Can you delete my name from the response? I don't want my first and last name on the forum: https://premium.wpmudev.org/forums/topic/installation-of-directory-failed