Clone job failure causes

You might wanna first start with actually sifting through this very community? There aren't really that many posts occurring, but in a fairly recent one various resources wrg to dealing with clone errors are actually mentioned?

https://www.dell.com/community/NetWorker/starting-troubleshooting/m-p/8365556

With a very generic question, you also get very generic answers...

Please post error messages or something so we can help you