Welcome to the WPML support forum. My name is Nicolas and I will be happy to help you today.
To help speed up the support process, I've enabled a private message for submitting the debug information for this support ticket. Please follow these initial debugging steps: https://wpml.org/faq/provide-debug-information-faster-support/
In short:
- Go to "WPML > Support > Debug Information" (link)
- Copy the Debug Information from there.
- Find the private field I activated and paste that information.
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While waiting for that file, I visited your shop in both Dutch and English and for both pages I have a listing of products (see capture) hidden link hidden link
If I missed something please let me know and give me a clear step by step to reproduce the issue.