I had the same issue today and thought I'd share the solution from Graphisoft Support.
The problem had to do with Java not being preinstalled on two iMacs, recently upgraded to Lion.
Safari was the web browser we were using.
The advice was thus:
"To resolve this, it is one of those issues where you need to do the correct dance steps and perform the following procedures in precise order. Please follow each step precisely, even if you already have Java applied to your system.
First, skip to step 6 below and try the last few steps. If that does not resolve it then return to step 1 perform all the steps.
1. Remove the Wibu Key from the USB port
2. Uninstall the Wibu driver using the Uninstaller in the Install download.
3. Go to this link and download and install the Java update for OSX Lion:
http://support.apple.com/kb/dl1421
4. Restart your computer.
5. Install the Wibu Key driver and then insert the Wibu Key into the USB port.
6. Visit
https://upgrade.graphisoft.com
7. If you still see the message that you need to download the latest driver, close the message and refresh the webpage.
8. If the message still returns, use a different browser (Firefox, Chrome etc.)"
It worked for us using chrome.
Marc Corney, Architect
Red Canoe Architecture, P. A.
Mac OS 10.15.7 (Catalina) //// Mac OS 14.5 (Sonoma)
Processor: 3.6 GHz 8-Core Intel Core i9 //// Apple M2 Max
Memory: 48 GB 2667 MHz DDR4 //// 32 GB
Graphics: Radeon Pro 580X 8GB //// 12C CPU, 30C GPU
ArchiCAD 25 (5010 USA Full) //// ArchiCAD 27 (4030 USA Full)