Hi Guys!

Im expriencing some problems with the subscribe/unsubscribe to topic button.

by default when creating a new topic im subscribed to it, when clicking the unsubscribe button its going to the unsbscribe rest extention method, and switches the class to be "Subscribe to topic". from now on everytime i click the subscribe to topic button it crushed at this line in the UnSubScribeToTopic(string topicId) function:

var remainingMembers = forumTopic.SubscriberIds.Where(x => x != m.Id).ToList();

with the msg: value cannot be null

SubscriberIds is always null

would love to get some help with it

thanks a lot!