Thank you for your question! I hope you are doing well during these trying times!
From the screenshot, it looks like the addon was not properly installed. I'm wondering how did you get the palette running on ARCHICAD, but no ARCHICAD tab in Grasshopper? Could you elaborate on how did you make it?
If you are sure that there is no other Rhino or ARCHICAD installation on your machine, rather than Rhino 6 and ARCHICAD 23, I suggest you download the addon here
and start the installation.
After successfully installing it, the ARCHICAD tab should be presented in Rhino.
Looking forward to hearing from you!
Technical Support Engineer
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