AVIRIS correction help, ".atm files must be resampled with new .bp7"

[AuxiliaryPie]

Hello, I am trying to process an old AVIRIS image (from the GRSFE project) and ran into a few issues. Originally I had planned on using the predefined AVIRIS_98 sensor but it only offers bands 1-62, so I simply updated the sensor (saved under a new name) to include 1-224 bands. The real issue I have now is when I proceed to run Image Processing, I get the following errors:

"*** Error: .atm files must be resampled with new .bp7 ***"
"*** Update the .bp7 files in atm_database !"

From what I have been able to gather, .bp7 files are the atmospheric files? I re-downloaded all of them (except for GMTED Elevation Data) but ATCOR is still giving me the error. Any help at all would be greatly appreciated!