Error 500 when I create a new user

Hello guys,

Im trying to do this simple POST:

curl --location --request POST '' \
--header 'Authorization: Basic token' \
--header 'Content-Type: application/json' \
--data-raw '{
    "firstname": "Test",
    "lastname": "Test",
    "email": "",
    "ipAddress": "",
    "overwriteWithBlank": true

And this is the answer that Im receiving:

    "errors": [
            "message": "Looks like I encountered an error (error #500). If I do it again, please report me to the system administrator!",
            "code": 500,
            "type": null

I can create a form, an asset, etc. But when I try to create a new contact, I have this error, any suggestions? Am I doing something wrong on my request?