Error uploading data to the MetaboAnalysis Network

Thank you very much!
Now I can successfully upload my gene list and use the KEGG Global Metabolic Network analysis function. But there is still a small issue.I set the background of the image to white, but the background of the image I downloaded is still black.


Besides, when I try to use the Gene-Metabolite Interaction Network,I will be prompted with the following information:
Troubleshooting
This page indicates an unknown error that is unique to your data and parameters.

Is it because I only uploaded the gene list?

Most sincerely,
Jingfang