Steps to clear cache on the Qashier X1/XL POS terminal:
Go to Qashier Homepage
Select "☰" on the top right-hand corner of the POS homepage
Select "Why is my POS slow?"
Enter Terminal PIN
Select "Clear Cache" and tap OK
Qashier App will force stop
Locate the Qashier app on your POS device
Log in with your Qashier username and password
Select your store
Clear Cache Success!