# General Data Importer questions {#general-data-importer-questions}



## I am getting a "500"-error, and I don't know what it is! {#i-am-getting-a-500-error-and-i-dont-know-what-it-is}


Sorry about that. You'll have to consult the data importer log files. Please look at [the debug instructions](https://sourcey-firefly.pages.dev/how-to/general/debug/index.md) for the data importer. The log files will show you what the error is. With that information, you can come [find us for some support](https://sourcey-firefly.pages.dev/explanation/support/index.md), so we can fix it together.


## I am being redirected to `http://app` and it doesn't work? {#i-am-being-redirected-to-httpapp-and-it-doesnt-work}


Make sure you set the environment variable `VANITY_URL` and make sure it points to your Firefly III installation. You can leave the `FIREFLY_III_URL` to `http://app:8080` as it is supposed to, but make sure that `VANITY_URL` is set to your actual Firefly III URL.

Press \[Start over\] in the data importer after you've changed the environment variable.


## I am being redirected to `http://localhost` and it doesn't work? {#i-am-being-redirected-to-httplocalhost-and-it-doesnt-work}


Make sure you set the environment variable `VANITY_URL` and make sure it points to your Firefly III installation. You can leave the `FIREFLY_III_URL` to `http://app:8080` as it is supposed to, but make sure that `VANITY_URL` is set to your actual Firefly III URL.

Press \[Start over\] in the data importer after you've changed the environment variable.


## I have another question? {#i-have-another-question}


Come [find us for some support](https://sourcey-firefly.pages.dev/explanation/support/index.md), so we can add your question!