Size of publisher logo

Hello @festus33,

I suggest you use a minimum logo size of 112 x 112 pixels. Also, the image must be in .jpg, .png, .gif, .svg, or .webp format.

For more detail here is the Google Guidelines link for the logo.
– https://developers.google.com/search/docs/advanced/structured-data/logo.

Let us know if you have any further queries.