I am getting very peculiar error message from Magento 1. What I'm doing is trying to "Create a shipping label", but for some reason I'm getting this error each time I check the box and press the button. I am using Avenla - SmartShip module to handle the shops shipping, but this error is stopping us from creating the shipping labels.
Uncaught ReferenceError: packaging is not defined at submitShipment ((index):897) at HTMLButtonElement.onclick ((index):860)
What we have deducted is that it could be that some old modules have left some phtml or layout files that cause this error, but again I cant be sure, because Magento 1 has a bad habit of spreading the files all over its system and even disable or removed modules can leave their files laying around.
Avenla support said it could be override problem, but cant be sure about this. Is there anyway to quickly solve an error like this.
Any fixes or even tips leading to solve this problem are greatly appreciated.