---
title: "TYPO3 Exception 1417988921"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1417988921"
source: "Exceptions/1417988921.rst"
modified: "2026-09-16T07:39:08+00:00"
---

# TYPO3 Exception 1417988921

> [!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).

## The CSRF protection token for the requested module is missing or invalid.

### Page module not working (TYPO3 7.x - fixed in newer versions)

Create your first page in the List-tab. Afterwards it will work in the
Page-tab too. Copied from this german thread:
[https://forum.typo3.org/index.php/t/210486/](https://forum.typo3.org/index.php/t/210486/)

Other Workaround, which applies for 7.4.0:

-   Export (to `.t3d`) a single leaf page from another TYPO3 CMS instance
    (mine was 6.2)
-   Right click root element in **page tree** => **Import from .t3d**
    (I imported only page properties)
-   Now I can append other pages to that page by using the **New**
    operation (which failed before)
-   I can even add pages (with **New** to the root element which did not
    work before.

Still, none of my pages is tagged as **Use as Root Page** in
**Page Properties** \> **Behaviour** =>
It does not have to do with "Root Page".
Instead, at least one page must exist to get rid of the Bug (as a
workaround).

Limitation: When I delete all pages in the page tree, and then try to
right-click-**New** => I hit the error again. Basically this means that
this workaround only works as long as you don't delete all pages.

See [https://forge.typo3.org/issues/66704](https://forge.typo3.org/issues/66704). When there is a fix available
and released, an update should do.