In addition to @PATIENT-X comment - you can find more detail of the information regarding your computer and program version here.
. . . . Won't find my camcorder, says all my files are under a different email. . . . .
Can you clarify this statement as you email address has nothing to the with locating video files either in the program - unless the files are located on Microsoft One Drive or on Google Cloud.
The camera may be a different unconnected issue.
If the files are located in the 'Cloud' then - they should be transferred to your computer hard drive or external USB drive, if they are not there already, before using them in the program from the hard drive or USB drive.