non-unique values when setting ‘row.names’ error in DESeq2

Hi Everyone!
I am trying to run the DESeqDataSetFromMatrix() command using a specific dataset but I keep getting the following error. For some reason, R (version 4.0.5) is trying to assign the first column of my DataFrame to be the row names, even though I have already assigned the row names to be the gene names. Also, here is a sampling of the data that I’m working with. I am currently working in R version 4.0.5. Any help or pointers in the right direction would be greatly appreciated 🙂