Energenie Mi/Home no Longer connecting

My Energenie was working fine with ST then over the course of a week all the devices dropped off. I have deleted all device handlers and the SmartApp and re-installed all but still seem to get the same result.
Logs:- javax.net.ssl.SSLException: java.security.ProviderException: java.security.InvalidKeyException: EC parameters error @line 659 (apiGET)

I really do not want to reset my ST hub and start all over but I do not know what else to do, Please may someone assist in this matter.

Many Thanks

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