Have you followed the advice here
https://support.youview.com/youview-box/error-messages/fix-for-yvm102/
No sure what you mean by the guide facility as Now channels are not within the Box guide, or do you mean the guide within Now?
Are you managing to get into the Now App?
Which box do you have so we can give you tailored advice?
Please remember to mark Solved Posts with Best Answer. Doing so helps other customers and saves TalkTalk's Support Team time by only looking at unsolved topics. Thanks, Steve (a fellow customer).
