Please download QCVS for PA 4.5 installation file from the following link.
https://support.nxp.com/s/case/500Tg00000GJrXMIA1/community-codewarrior-qvcs-fatal-alert-protocolver...
Please install CodeWarrior for PA 10.5.1 first, then open CodeWarrior IDE and install QCVS for PA 4.5 from Help->Install New Software->Add->Archive.