The hosting platform returned an error message while trying to process your request. Please try again or try making the change through the control panel. The error returned is: Error #99452489 Please contact support.
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Free hosting has a control panel, click the “Control Panel” button in the client area, and navigate to the SSL/TLS section. Copy the keys from the SSL page to there.
I checked the issue. It seems that a bug was introduced into the control panel that prohibits some CNAME records from being added. Unfortunately, it seems like the validation CNAME records of all SSL providers are affected by this.
I have notified iFastNet about this. Unfortunately, all you can do right now is wait.