How do I find the value?

Hi all,

I have a 1.5 million row table that has been used many times over. For some reason, when I went to use it this morning, it was not wanting to work.

I have a 'Bankruptcy Date' column that I feel pretty confident only has dates in it.

I get this error code when I try to run this dataset through a dataflow.

I cannot find any values in the 'bankruptcy date' that would possibly trigger this.

Any suggestions?