Hi, I'm unable to get into one of our company files. Getting the Warning and suggesting someone else is using the file. There is no one else who uses the file. I can open my other company accounts fine. It worked yesterday. I have tried to open it on Chrome and Firefox and get the same message. Tried to include a photo of the warning but it wont upload, says "Internal error" I'm sure it will be quick to fix it but I can't find a phone number in Aus for tech support.