Photo edits destroyed

Hi

I am looking for help. I cannot find any way to email Adobe so hoping someone in the forums can. 

Long story short, I went from Lightroom to ON1 and transferred over my images with edits. I have decided I want to use Lightroom again. However somehow through that process most of my photos are ruined. The edits have done something strange such as local adjustments are strong colours or max exposure. I don't know how to revert them back to how they looked before moving to ON1 (or even back to the original RAW and JPG if the edits are broken). I tried opening older Lightroom backups pre dating me using ON1 but the ruined edits are still there. 

If anyone can help I would really appreciate it. I have nearly 60000 images going back to 2012. 

Thanks

Dan