Thank you for reaching out regarding the issue with the search box in the Mega Deal 2 template.

To resolve this, please follow the steps below:

1. Navigate to Components > Smart Search > Index in your Joomla administration panel.
2. Click on the Index button located in the top-left corner of the page. prnt.sc/GPHw-QV_BV4e

This should resolve the issue. Please feel free to reach out if you encounter any further challenges or need additional assistance