Reason:
Insufficient memory or Abnormal TV software.
Solution:
1. Please turn off the TV and unplug the TV power cord, wait for 2 minutes, and then plug it back in.
2. Please refer to How to clear APP data in realme TV？ and [realme Smat TV]How to clear cached data? to clear cache and data
3. Please refer to How to reset realme Smart TV? to restore the TV to factory settings.