Package server has some retrying packages and it tries to redownload them every second.
Errors in the logs included:
ITM 8.x
Checked the file content in the folder Package Delivery>GUID>Cache folder. Files were created but the size was 0kb
Delete the current files with 0kb size, in the cache folder.
Checked the source for these 3 retrying packages on the NS, but they don't exist:
Copy these 3 files from another Package Server and put them in the NS at the appropriate location which this Package Server is looking to download them.