Yes, we've received a few reports from users getting Error 102 with Standard Bank starting yesterday. This error indicates maintenance or server issues on the bank's side and will usually take them 24-48 hours to resolve. Therefore, our engineers are also observing within that time frame.
I recommend signing in to your account to find out if they have announcements about online banking. If you don't see one, please contact our QBO Support so they can use more tools to gather more details for our engineers to check this further. Please tell them you've experienced this since May 12.