This is probably because you have Increase Page Speed by tcalp installed on your website.
To fix the issue, please try the following:
- Download the file attached to this article
- Upload it to the
vqmod/xmldirectory of your store
- Log in to your OpenCart Admin dashboard and clear all caches
- Reload the mobile site. Everything should be working properly.
If this doesn't solve your issue, please open a support ticket and email us your FTP (or cPanel) username and password. We need your login info to be able to solve this problem.