Failed to create user. Email address is already used

Hi,

I'm trying to add a user to my Language Weaver subscription (Account Id: 11939) and get this error message:

"Failed to create user. Email address is already used.
Trace Id: lwui.xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx."

I have double-checked and the user's email is not in use.

Can you help me solve this problem?

Thank you very much in advance,

Sabina

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