I am unable change my company logo

- When I click the + button near my logo the whole screen fades out and QB's won't let me click anywhere on the screen or allow me to exit. I am left to have to force quit each time.

I am unable to change my VAT number
- Every time I put in my VAT No. in and click save, QB's changes it to completely different number that is not mine.

- I have cleared my browser cookies and cache.
- I have restarted my laptop & I have tried troubleshoot.