I have proposed my dissertation, and I submitted for IRB approval and was approved. However, I noticed a few errors relating to my measures as I was uploading to qualtrics. One is minor, and involves an edit which I was gonna do with an addendum. The other was that I uploaded the wrong scale. I was initially supposed to use scale A but was pressured to change it by committee at the last minute. I did the research on scale B but figured I would locate the scale later. When I was completing my IRB I uploaded scale A. I noticed my error in moving to qualtrics, and went to search for scale B. The problem is I was unable to locate the scale online. I reached out to the developers who informed me they are unable to provide the scale via an online format, and can only provide it in paper format. I am at a loss at what to do? Has anyone ever run into this? Any tips on how to proceed? How should I address this with my adviser?