Component install error

I have seen your screenshots
but

Also use manually way = Works

great ! this is what I thought , just misreaded your previous message

for the automatic update, have you put the code into Extensions Manager CK like requested ?

öhm ? don't know where to insert Lizence in my backend?

But add the URL on your site

check the doc
there are the explanations
"Put your license code into your website. To do that you will need to install the extension Extensions Manager CK."

hm, only this found

www.joomlack.fr/en/documentation/cookies-ck

the doc is here :
www.joomlack.fr/en/documentation/miscellaneous/202-license-code

there is the link to the Extensions Manager CK
www.joomlack.fr/en/joomla-extensions/extensions-manager-ck

Download and install this extension. It will list the CK extensions and you will have a field at the top where to fill the licence code
Let me know