Enatega Customer Application: Null error showing when new user is logging by email.

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To Reproduce
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Expected behavior
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Screenshots

Desktop (please complete the following information):

OS: [e.g. iOS]
Browser [e.g. chrome, safari]
Version [e.g. 22]
Smartphone (please complete the following information):

Device: [e.g. iPhone6]
OS: [e.g. iOS8.1]
Browser [e.g. stock browser, safari]
Version [e.g. 22]
Additional context
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Start by reproducing the null error during email login in the Enatega customer application. Inspect the email-login flow and its available error output; done means a new user can log in by email without the null error. The issue provides no file or test reference, so the relevant entry point must first be located.

Written by the indexing model from the issue text.