Which version are you at?
Are you using raspberry or Windows?
Please check the following things: In the installation/backup part
1. Make sure that you are on at least release 659
2. Make sure that you have not selected Module Tellstiq unless you actually use a Tellstick
3. Make sure you update the Main database after the above steps
In the Settings->Poller Settings:
1. Make sure that you don’t have poller_TellstIQ selected
If that does not resolve you problems I would recommend you to restart from he following bullet in the installation documentation: Raspberry “Now it’s time to install the ThermIQ sw package” Windows: “In the Powershell command line, copy and paste one line at a time from below:”