---
title: "Troubleshooting issues on your Signer instance (Linux)"
description: "Troubleshooting a Signer instance on Linux: documentation still under construction, pointing to checking the system logs."
canonical: "https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/linux/troubleshoot"
locale: "en"
product: "Signer"
last_updated: "2026-10-22"
---

# Troubleshooting issues on your Signer instance (Linux)

Common issues:

* [Error with a code on screen ("enter the code ...")](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/linux/troubleshoot/check-logs#error-code)
* [Upload rejected because of size](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/limite-de-upload)
* [E-mail, SMS or Whatsapp notifications do not arrive](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/notificacoes-nao-enviadas)
* [Cloud certificate does not show](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/certificado-em-nuvem#common-errors)

> **Note**
>
> If you are encountering an unlisted problem, try [check the system logs](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/linux/troubleshoot/check-logs) or contact us.

## See also

* [Checking the system logs](https://docs.lacunasoftware.com/en-us/articles/signer/on-premises/linux/troubleshoot/check-logs)