The editor says a section failed to render, what now?

A section or block references something missing, often from a recent edit. Roll the template file back in version history.

Can Shopify support fix my theme?

First-party themes get support help; third-party themes go to the theme developer. Code you added is yours to fix.

Will updating the theme delete my customizations?

Updates replace theme files; manual code edits need reapplying. Section content set in the editor generally survives.

How to Fix Common Shopify Theme Errors

Most Shopify theme errors come from a broken Liquid edit, a leftover app snippet, or an outdated theme. Fix them by identifying the error message, rolling back the theme to an earlier version from the editor's version history, or removing the offending snippet, then reapplying changes carefully to a duplicated theme.

Read the error properly

A Liquid error names the file and line, which sounds technical but points exactly at the problem. Screenshot the message, then open the named file in the code editor. Often it is an unclosed tag from a paste, a deleted section reference, or an app snippet calling something that no longer exists.

Use version history first

The code editor keeps per-file version history, and you can roll a file back to before the breakage. For widespread damage, duplicate the current broken theme (so nothing is lost), then restore or re-install a clean copy and reapply customizations one at a time, testing after each.

App embeds and leftover code

Theme errors after uninstalling an app usually mean its snippet survived. Check theme settings for app embeds and the layout files for orphaned include lines. Remove references to uninstalled apps, and contact the app developer for removal instructions if the snippet is unclear.

Prevent the next one

Never edit the live theme directly: duplicate it, edit the copy, preview, then publish. Keep theme updates current, since old themes break against platform changes. When an error appears, change one thing at a time so you always know which change caused it.

Frequently asked questions

The editor says a section failed to render, what now?: A section or block references something missing, often from a recent edit. Roll the template file back in version history.
Can Shopify support fix my theme?: First-party themes get support help; third-party themes go to the theme developer. Code you added is yours to fix.
Will updating the theme delete my customizations?: Updates replace theme files; manual code edits need reapplying. Section content set in the editor generally survives.