Request to follow the steps below 

✔ Check your phone storage, if the storage is full, then please clear it and try again.   
✔ Try with a stable network connection and check again.  
✔ Try to uninstall and reinstall the app and check again.  

 If the issue still persists, please share the screenshot of network speed from speedtest.net at livsupport@sonyliv.com along with your registered mobile number.