# Find cause

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You effectively **save your time** if you make sure before creating a ticket whether the problem is caused by the theme or another extension.
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## Identify theme as the cause of an error

Researching the cause is the first step in fixing the error. Often it is not clear whether a theme, a extension or the Shopware core itself is triggering an error. The following guide is therefore often queried in the first step of the support response. **If you have already checked this before creating a ticket, we can already address your concern more specifically in the first response.**

You can therefore easily identify or exclude the theme as the cause of a problem. Proceed as follows:

* Select the sales channel in which the theme is assigned
* Select the default theme in the "Theme" tab via the "Change Theme" button
* Click on "Save"
* Check the affected function in the storefront with the default theme
  * If a misrepresentation or malfunction is caused by a theme, the problem should disappear when the system's default theme is activated.
  * If the misrepresentation or malfunction is still present, the cause may be elsewhere.
* After testing, activate the original theme for the sales channel again

If the theme was successfully identified as the cause, create a ticket via your Shopware account.