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Curl error when trying to "Update License" Key
I am trying to activate the Admin Columns plugin, and when i enter my License Code and click on the “Update License” button. I am getting the following error:
cURL error 7: Failed connect to api.admincolumns.com:443; Connection refused
curl -vv https://api.admincolumns.com:443
* About to connect() to api.admincolumns.com port 443 (#0)
* Trying 104.236.214.206…
* Connection refused
* Failed connect to api.admincolumns.com:443; Connection refused
* Closing connection 0
curl: (7) Failed connect to api.admincolumns.com:443; Connection refused
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