Fix issues on our Shopify site

Job ID: 35239304

Budget: $30 – $250 AUD

There are some issue on our shopify site lately.
1. Card messages that customer types in at checkout are not always showing in the backend for us?
2. Date for delivery that customer selects on pop up calendar is not always showing in backend for us?
3.Can we put a message regarding delivery eta's on the pop up calendar page and check out page - because lately customers seem to be missing this information and expect same day delivery to some States, but this is not possible. I can send screenshots to show you what I mean.
4. The "add to your product" items and categories are missing all of a sudden - not sure why?
We need all the above fixed as soon as possible.
The theme we have on Shopify is: Porto3.6.1
Related categories: PHP Website Design HTML Shopify Templates Shopify