Plugin Download Job Failure

I installed the repository manager this week and continually receive errors regarding the plugin update jobs.

Im not sure what this means or how to fix it.

From the log...

2022-05-20T15:22:31 : Downloading 2 files

2022-05-20T15:22:32 : Copied from store: FOLDER08033840M/1/Systems-Management_Application_D0JW4_LN64_1.9.3.0_A00.BIN

Downloaded: F:\DellRepository\FOLDER08033842M\1\Systems-Management_Application_D0JW4_LN64_1.9.3.0_A00.BIN.sign

2022-05-20T15:22:32 : Sign verification failed