Error logo

[biaf]

The logo is resized small, can you tell me why? and what should I do to put an dimension me good?
my logo actually dimension 1313X1115

My web site: https://www.kbs-fermeture.fr/
My logo: https://www.kbs-fermeture.fr/wp-content/themes/snssimen/assets/img/logo.png

Thank you for your help,
Cordially

Attachments:

1. 

   PrtScr-capture.jpg
   

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