Plug-in google calendar

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What I’m trying to do

I install and activate google calendar plug-in, and I do the instruction to get ID and secret url. All seems good, I get the message “successful” from google.
I close and open obsidian, but I don’t have the icon of google calendar !
Some one can help ?

Things I have tried

I don’t find any solution
I create a note with calendar view (goal view) as I wanted, so it’s ok but I don’t understand why the icon doesn’t appear on left sidebar