---
title: "TYPO3 Exception 1301648780"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1301648780"
source: "Exceptions/1301648780.rst"
modified: "2026-09-16T07:39:08+00:00"
---

# TYPO3 Exception 1301648780

> [!NOTE]
> Below, the TYPO3 community may have provided additional information or
> solutions for this exception. However, these may or may not apply to your
> particular case. If you can provide more information, you should come back
> here and add your experience and solution steps to this issue once you have
> resolved it.
>
> General TYPO3 troubleshooting tips can be found in the *Troubleshooting*
> section in the menu. You can also ask questions and receive support in the
> [TYPO3 Questions category on talk.typo3.org](https://talk.typo3.org/c/typo3-questions/).
>
> To add your experience, click "Edit on GitHub" above and follow the
> ["Edit on GitHub" workflow](https://docs.typo3.org/m/typo3/docs-how-to-document/main/en-us/Howto/EditOnGithub.html#docs-contribute-github-method).
> Also check out
> [our tip on Coding Style and reST](https://docs.typo3.org/permalink/t3exceptions:tip-about-rest-coding-style).

## PageNotFoundException

### Wrong Site Configuration

In LTS 9 this exception occurs when the rootPageId in the site config
(`config/sites/domainname/config.yaml`) does not match the pageId of the
page that is set as root page.

### Wrong preview/extension configuration

The Exception occurred after updating to 6.2.9. When editing a
`tx_cal_event` (`/typo3/alt_doc.php?edit[tx_cal_event][135]=edit`) and using
any of the "Save"-Links, the Error "Page Not Found (404) The requested
page does not exist!" is shown and nothing is saved. The resulting URL
is `/typo3/alt_doc.php?&edit[tx_cal_event][135]=edit&returnUrl=dummy.php`
which might hold two hints: dummy.php and the missing key/value in the
query string directly after the question mark.

**SOLUTION** The solution was, that the SysFolder had a Page TSconfig entry
`options.tx_cal_controller.pageIDForPlugin = 419`. The page 419 had
been deleted. After removing the option cal worked again. So be sure
to check the page TSconfig for wrong entries