Help with Rectifying Crypto Transaction (Tip)

So, I'm part of the big Celsius scheme, and I'm trying to pick up the final pieces and then just live my life. I'm currently calculating my losses for the 2025 tax year (USA), and I'm flagged for a BTC move that I made. It was made in 2021, so I don't remember it, and I haven't traded crypto in a few years, so my mind has been completely away from anything to do with it. I honestly don't know how to rectify it, and it's big enough to mess with my calculation. I have a complete .csv file that I've uploaded to both Cointracker and Koinly, and I can't figure it out. Is there anyone willing to help me figure this out? Willing to tip $100.

I honestly just want this chapter finished in my life. I'm open to any and all advice; it's just a single transaction.