App Mobile crashes when using UI

Hi! I’m developing a mobile app with UE4.26, but everytime I try to add some animation, or multiple buttons, the app crashes with this error:

LogPlayLevel: --------- beginning of crash
LogPlayLevel: 10-19 11:27:17.477 2492 2492 D UE4 : [GameActivity] onPause: stop memory reporter runnable
LogPlayLevel: 10-19 11:27:17.477 2492 2492 D UE4 : [GameActivity] Unregistering sensor listeners
LogPlayLevel: 10-19 11:27:17.504 2492 2707 D UE4 : Case APP_CMD_PAUSE
LogPlayLevel: 10-19 11:27:17.504 2492 2707 D UE4 : [2021.10.19-09.27.17:504][ 0]LogAndroid: Case APP_CMD_PAUSE
LogPlayLevel: 10-19 11:27:17.504 2492 2707 D UE4 : LogAndroidEvents::EnqueueAppEvent : 6, [width=-1, height=-1], tid = 2707, APP_EVENT_STATE_ON_PAUSE
LogPlayLevel: 10-19 11:27:17.505 2492 2707 D UE4 : [2021.10.19-09.27.17:504][ 0]LogAndroid: event thread, suspending app, acquiring HW window lock.
LogPlayLevel: 10-19 11:27:17.505 2492 2707 D UE4 : LogAndroidEvents::EnqueueAppEvent : 15, [width=-1, height=-1], tid = 2707, APP_EVENT_RUN_CALLBACK
LogPlayLevel: 10-19 11:27:17.505 2492 2707 D UE4 : [2021.10.19-09.27.17:505][ 0]LogAndroid: AndroidEGL:: SuspendApp_EventThread, waiting for event manager to process. tid: 2707
LogPlayLevel: 10-19 11:27:17.505 2492 2492 D UE4 : [GameActivity] ==============> GameActive.onPause complete!

I know it’s because of de UI because if I delete it the app runs perfectly fine. Anyone with the same problem fixed? Thank you.