The general information are the information displayed on your Zenchef website in the homepage and in the Map and contact page.
To edit them, click the pencil icon Edit on the right side of each block of information.
You can then add the information by selecting them from the various options that appear.
Make sure to save the changes by clicking the green button Save on the right side.
Please note that the information you'll edit on this part of your dashboard will not modify the information of your website if it's not a Zenchef website of mobile site.