Studio - field column headings have "undefined" in 7.10.10

Please move if this is in the wrong place, I’m new here. Just installed 7.10.10 and went to studio to add some new fields to contacts. Studio>Contacts>Fields the column headings say undefined, and when I add a field and click save, a dialogue box pops up that says undefined in the header and body. The field is however correctly created.

Usually those undefineds around the app are a sure sign that you didn’t set up your ownerships/permissions properly. You really need to fix that.

Start by trying to follow the installation instructions, but note that you need to know the user name that your web server is running under, in order to do a good job setting permissions.

Same case here. Sure enough, these permissions fixed my issue:

sudo chown -R www-data:www-data .
sudo chmod -R 755 .
sudo chmod -R 775 cache custom modules themes data upload
sudo chmod 775 config_override.php 2>/dev/null