# Troubleshooting ## Signing In ### I can't sign in with a magic link! You could receive a number of different errors when attempting to sign in with a magic link. Here are some of the common ones and how to resolve them: | Error | Description | Solution | | -------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `Tenant not found. Please contact your institution's administrator.` | The domain of your email, also known as the text that follows the `@` symbol, is not registered in our system. | Please ensure you have spelled your email correctly, or that you are choosing the correct email. Contact your institution's administrator if you are still stuck. | | `Signups not allowed for otp` | Your email address is valid, but you do not yet have a profile in your institution's backend. | Contact your institution's administrator to add you to the system, then attempt to sign-in again. | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.chestnut.tools/user-docs/troubleshooting.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.