1. Institutional reasons. Keep can't find a friend gym, which is caused by a system failure. It's caused by the system, and it can be normal after the system is repaired.

2. Network reasons. Keep can't find a friend's gym, which is caused by network delay. It is caused by the network. Just change the network and re-enter it.

I hope the above information is helpful to you. If you have any other questions, please let me know.