Upload a gene expression table - Error

Hi, I always receive an error, when I want to upload a gene expression table (see image below).
image
What does this error mean?
Best wishes,
Anna

Dear Anna,

Could you share with me your data table so I can better troubleshoot?

Regards,
Guangyan

I am getting similar error. Can you please let me know how you solve this issue?
Thank you very much!

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