@Marvin how can I fix the error “Error creating notification”, when trying to create Slack notification from the UI of self hostet prefect? Version 2.16.2.

It seems there may not be much recent specific documentation or open GitHub issues directly related to the "Error creating notification" error when trying to set up Slack notifications from the Prefect UI. However, here are some general steps you can check to troubleshoot the issue: 1. Permission settings: Ensure that the account used to set up the Slack notification has the necessary permissions in both Slack and Prefect UI. 2. Correct API Information: Verify that the Slack webhook URL or any other Slack API information you're using is correct. 3. Prefect Server/Cloud Configuration: Make sure your self-hosted Prefect server or Prefect Cloud is configured correctly to send out notifications. For more details on configuring notifications, refer to the Prefect documentation on hosted notifications. 4. Network Issues: Check if there are any network issues that might be preventing your self-hosted Prefect instance from reaching Slack's servers. Since there is no specific documentation on this error and no open issues that I can find, if none of the above steps resolve your issue, it may be helpful to reach out to the Prefect community or support for further assistance. You may want to provide a detailed description of the error and the steps you've taken to troubleshoot it. Remember to format text prettily for Slack and provide any necessary links or guidance as outlined in the documentation. Keep in mind that documentation and community forums are dynamic sources of information, and additional troubleshooting steps or solutions may be found by continuously monitoring these resources.