I understand that you have removed a section from your theme and would like to retrieve it. May I ask if you are referring to Sections and blocks that can be edited from the theme editor, or did you remove certain section files from your theme code?
If you removed a section from the theme editor, then you can easily add it back by following the steps below (depending on which theme you are using, these steps may differ slightly):
From your Shopify admin, go toOnline Store>Themes, and then clickCustomize.
Select a template from the drop-down menu.
Click+ Add section, and either select a new section from the list or use theSearchbar to search for a specific term.
Click on the new section to edit the blocks within the section.
Optional: Click and drag the⋮⋮icon next to a section to rearrange the sections on your page.
If you wanted to share which theme you are utilising with me, I can provide more specific steps!
Otherwise, if you completely removed a section from the theme code you can look to revert your theme to a previous version. You can roll back files individually to a time and date before you made the changes. The next best option here would be to install a fresh copy of your theme.
Let me know how it goes!
Moira | Social Care @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog