Graph/Chart doesn’t work as expected when you don’t follow the installation guide properly. To make sure it works you should install it using the installation guide.
NOTE: not following the installation process will have many other additional other problem, so we always recommend to follow it.
If you have followed the installation guide and then also it is giving this problem then follow the below-given solution.
Open the .env file which is present inside the pos codebase. In the .env file, you will find “APP_URL“, set the correct value of the url in here.
For example, if the POS URL is http://pos.maskprofosters.com then APP_URL=http://pos.maskprofosters.com