> For the complete documentation index, see [llms.txt](https://help.security.gallagher.com/knowledge-hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.security.gallagher.com/knowledge-hub/products/cc-software/troubleshoot/command-centre-errors/upgrade-cannot-continue-because-the-fo.md).

# Upgrade Cannot Continue because the following Customisation(s) is Not Installed

[Command Centre - Errors](/knowledge-hub/products/cc-software/troubleshoot/command-centre-errors.md) › Upgrade Cannot Continue because the following Customisation(s) is Not Installed

| Error content                                                                                                                               | Description                                                 |
| ------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------- |
| Upgrade cannot continue because the following Customisation(s) is not installed `%1`. Please uninstall all customisations prior to upgrade. | The upgrade cannot proceed due to customisations installed. |

![Error: upgrade cannot continue, customisation not installed](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-5899d426d6de59a01c95b77d44fe49c81d9a0de7%2FSECHUB-CCS-ERR-UPGRADE-CUSTOMISATION-01.jpg?alt=media)

## Cause 1

Customisations are still installed. Find the list in the **FTSupportInfo** file, **Customisation Information** section.

## Cause 2 (bug)

An issue with CCFTRestore, CCFTRecoveryCode, and CCFTDBAnonymiser triggering an upgrade check even though the version is not changing. Fixed in **vEL8.10.1120**, **vEL8.20.968**, and **vEL8.30+**.

## Resolution

Uninstalling the customisations allows the upgrade to proceed, and also allows CCFTRestore and CCFTDBAnonymiser to complete.

***

🔗 **Related**

* [Command Centre - Errors - Install error 1049821173](/knowledge-hub/products/cc-software/troubleshoot/command-centre-errors/command-centre-errors-install-error-10.md). The customisation block reported by Setup.exe on v8.60 and v8.70.


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