big problem: help

Received this email all of a sudden

“ We’re writing to let you know that you have just lost your website URL claim in your GMC.

Another Google merchant center account has verified and claimed the exact URL”

Then we took steps to verify the URL,

Everything seemed like it was fine, products approved again.

But then all products were disapproved and the same issue reappeared two days later.

Any idea whats happening? How to solve this?

Much appreciated!!