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

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To Reproduce
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See error
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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The issue names no files, tests, or entry points and provides no reproduction details beyond logging in by email. Start by reproducing the null error in the customer application and tracing the email-login flow; done means the null error no longer appears for a new user.

Written by the indexing model from the issue text.