An error occurred while updating Enfold: Could not create directory.

Good morning,

I am revisiting an old site (http://www.8bc.co/) and want to update the Enfold theme, but get the following message when I try:

Updating Theme Enfold (1/1)
Downloading update from https://s3.amazonaws.com/marketplace-downloads.envato.com/files/158562080/enfold.zip?AWSAccessKeyId=AKIAJYG5ROGJ6X7Z3M6Q&Expires=1448358099&Signature=qch3Vyr8fijHpAy5B%2Bw7mqyb3E8%3D&response-content-disposition=attachment%3B+filename%3Dthemeforest-4519990-enfold-responsive-multipurpose-theme-wordpress-theme.zip…
Unpacking the update…
An error occurred while updating Enfold: Could not create directory.
Disabling Maintenance mode…

Attention: We detected some custom styling rules in your custom.css file and restored it ;)
All updates have been completed.

Current version of Enfold on the site is 3.0.8

Any advice is very appreciated! Thanks.

– Tom