Server returned error while processing: No log

I love this plugin, and we use it to rewrite product descriptions for products that we import from another store on another platform to our woocommerce store. I haven't used it for a while, but I had a large number of products to process yesterday, so I enabled and updated the plugin. However, now I am getting an error every time I try to run Existing Content Editing where is just says "Server returned error while processing: "error", please check plugin's 'Activity and Logging' menu for details." however, there is no information in the log. We are on the latest version of WP and WOO, perhaps this is the issue? It is not compatible with newer versions of WP?