我建议您执行以下操作:
1. az帐户清除
2.尝试使用您的最新密码进行az登录，您可以使用该密码登录azure门户.看看是否有帮助.

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如果此答案有帮助，请单击标记为答案"或上投票".提供其他反馈 在您的论坛体验上，点击 armclient get "/subscriptions/$subscriptionID/providers/Microsoft.OperationalInsights/workspaces?api-version=2015-03-20" 

What i done:-

I have login PSsession before running this script using "login-azurermaccount"
After it I am running this script and now what i can see there are two differ errors:-

Error 1:-

The remote server returned an error: (400) Bad Request.
AADSTS70002: Error validating credentials. AADSTS70008: The refresh token has expired due to inactivity.ÿThe token was issued on 2018-
06-11T16:45:03.5238738Z and was inactive for 90.00:00:00.
Trace ID: c9ada1bb-ccbb-4b26-b562-296e68bb2e00
Correlation ID: 9ba07425-734c-4d9c-bd50-0737d8475bc7
Timestamp: 2018-09-24 12:05:25Z 

Error 2:-

The remote server returned an error: (400) Bad Request.
AADSTS50173: The provided grant has expired due to it being revoked. The user might have changed or reset their password. The grant was issued on '2018-07-25T09:19:37.9620000Z' and the TokensValidFrom date for this user is '2018-09-10T00:29:55.0000000Z'
Trace ID: 18160474-ab3d-4096-875c-a362f4b63a00
Correlation ID: ca408826-fed1-4571-92c1-19ac691b9926
Timestamp: 2018-09-24 11:37:47Z

FYI... Earlier it was running fine before some days. But since when i have changed my password it is not working. However i can run can other scripts which do not have armclient in it. (like get-azurermvm etc.) even i can access portal using my new credentials and token.

Not sure what is happening here!

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Cheers, Gourav Please remember to mark the replies as answers if it helped.

I would Suggest you to do the following:
1. az account clear
2. Try az login using your latest password, the one you can login azure portal. See if it helps.

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