Agent Login on loading

Can someone help me? After an agent logging in the agents dialer it will stuck on loading screen. It always happens when all my agents using the dialer, but if they're not using, it works fine.
VERSION: 2.14-858a
BUILD: 220513-0819
© 2022 ViciDial Group
VERSION: 2.14-858a
BUILD: 220513-0819
© 2022 ViciDial Group