Could not Delete the HPOO Content pack from central
You are trying to delete the HP_DevOps content pack which other content packs like "Jenkins MPP 4.5". You need to delete all of the content pack that depnend on each other.
It seems you have created a new DevOps CP with some items (same UUID) from an old DevOps CP that you no longer need.
Old DevOps CP is needed by your Jenkins CP.
either: delete Old DevOps + Jenkins CP from Central and upload new DevOps + Jenkins PC
or: create an empty DevOps CP (same name of the CP) and upload new DevOps + empty DeVOps.
It looks like the 2nd problem you ran into is due to a mismatch in the CP (project) names. The deployed CP is named HP_DevOps, but you are trying to update it with a CP named HP_DevOps-cp-4.5. Try to re-create the CP with the name HP_DevOps. (Note that the proper CP name is taken from the CP properties, not the filename.)