I’m having this error:
The server cannot process the image. This can happen if the server is busy or does not have enough resources to complete the task. Uploading a smaller image may help. The suggested maximum size is 2560 pixels.
any idea how to resolve this?
You might want to consult your Hosting Provider first in this regard because it seems to be an issue at the WP end or Server end. Kindly, please first consult them in this regard and see what they have to say about it because it doesn’t seem to be a Theme-end concern. You can also check with the default WP Theme activated too to check and confirm the face if it is a Theme-level issue or not.
Sorry to say but this concern is specifically not related to the Theme itself. Could you please check how it works with some default WordPress themes like TwentyTwenty or WooCommerce Storefront to understand is it our theme issue or not?