"I'm encountering an issue when attempting to log in to my webshop in version 17. Every time I try, I receive an error message. Additionally, I have a query regarding the GST calculator functionality. Can you assist?"
I keep running into an 'UncaughtPromiseError' followed by a 'TypeError' stating 'Cannot read properties of null (reading 'classList')' whenever I try to use the GST calculator. Can you help me resolve this issue?"