404 Resource Not Found Key Phrases

Hi,

I am trying to run a key phrase extraction but my function is providing an error:

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An error occurred in the ‘’ query. DataSource.Error: Web.Contents failed to get contents from 'https://alextextanalyzer.cognitiveservices.azure.com/v3.0/keyPhrases' (404): Resource Not Found
Details:
DataSourceKind=Web
DataSourcePath=https://alextextanalyzer.cognitiveservices.azure.com/v3.0/keyPhrases
Url=https://alextextanalyzer.cognitiveservices.azure.com/v3.0/keyPhrases

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Not sure what my issue is here, I followed the tutorial MS docs here:

https://docs.microsoft.com/en-us/azure/cognitive-services/language-service/key-phrase-extraction/tutorials/integrate-power-bi

and updated the permissions too along the way. I am not sure why the endpoint is not recognised? I copied it directly from my Azure account. For reference my custom function is as follows:

any help would be great!