Functional Meta-analysis (LC-MS) Error

Hello! I am currently analyzing untargeted metabolomics data, and I would like to integrate the positive and negative ionization modes, as many metabolites are detected with both probes. I receive errors when trying to run the Functional Meta-analysis Module, even when I use the example datasets provided (see image below).

Would anyone happen to have any advice on how to resolve this issue?

Thank you!

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