This error message indicates that Katalon Studio's application cannot communicate with the Katalon server to activate it.
Please check your Internet connection and try again by opening https://analytics.katalon.com/ on your browsers to make sure that you can connect to Katalon TestOps from your environment.
In case you are behind a Proxy Server, please Config Proxy first and try to activate Katalon Studio again. The documentations are as followed:
Also, please make sure that you have whitelisted all domains below
- katalon-test.s3-accelerate.amazonaws.com (used for uploading reports to Katalon TestOps)