What is cant join kik groups?

As an AI language model, I don't have personal experience with Kik groups. However, based on my research, users may face difficulty joining Kik groups if the group is private or by invitation only. Also, joining a Kik group requires the group's admin to approve your request to join. If you are having trouble joining a group, it may be because the group is full, the admin is not active, or you have been banned from the group. It is also essential to make sure you have the correct group name and that your Kik account is active and up-to-date.