Error Message when posting – input file doesn’t exist

Hi Qamar,

Trying to use your plugin, but encountering an error.

I use only custom post types (using ACF), and store images on Amazon S3.

When I create a new post I receive an email like this :

Dear user,
Your post ID 3227 not posted on Instragram due to following reason.
Input file “s3apsoutheast2://carfocus/WP Media Folder – Cars are our Focus!/wp-content/uploads/2019/06/Ford-Roadster-Hot-Rod.jpg” doesn’t exist.

The actual image URL is :

https://s3-ap-southeast-2.amazonaws.com/carfocus/WP+Media+Folder+-+Cars+are+our+Focus!/wp-content/uploads/2019/06/Ford-Roadster-Hot-Rod.jpg

Any thoughts on why this might be happening and what I am doing wrong please?

Cheers,
Dave