Can't upload small images


I have a problem on Strapi Admin Mediathèque. I absolutely can’t upload any small image, I have an error: “An internal server error occurred”. It seems that it happens for all images less than 200x200 pixels.
I am also unable to upload svg images.

Thank you for helping

System Information
  • Strapi Version: 3.6.5
  • Operating System: Windows
  • Database: postgres
  • Node Version: v14.16.0
  • NPM Version:
  • Yarn Version: