Cannot Find Photo Library On Mac or Seagate External Hard Drive

I have a MacBook Air and am currently running MacOS Monterey Version 12.7.4 which I desperately need to update. I bought a Seagate One Touch External Hard Drive for the purposes of moving my Photo Library over to the external hard drive as well as other storage robbing items so that I could update it. I made sure to format the external hard drive to APFS. I followed the instructions and initiated the transfer which did not take long at all which made me think something was not right. When I saw the contents of the Seagate it said Photo Library but there were only 105 pictures on there. I don't know how many photos I had, but they were using up the majority of my storage. Now I cannot find the Photo Library on my MacBook Air in fact when I click the Photo icon it says "Photos cannot find library." Under that it says "Library was last found on a drive named "One Touch." Can anyone advise me where to look in my MacBook Air or in the Seagate One Touch? I only see the one Photo Library in the One Touch and that is the one with 105 pictures. .

Thank you in advance for any help you may be able to offer.

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