Unidentified Error Message

[JEFFLEE221]

Following Error occurred after clicking "Buy Now"  and won't be able to proceed

[Geo123]

Hello JEFFLEE221,

Please logout and clear your cache.
If you are using Microsoft Edge, Google Chrome, or Mozilla Firefox you can quickly clear cache with a keyboard shortcut. While in your browser, press Ctrl + Shift + Delete simultaneously on the keyboard to open the appropriate window.
Safari (Mac) with the Option-Command-E.
Log back in.  The error should be gone.