Hello. Please help and sorry for my english ) 
I install macOS with this guide https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-precision-clover-guide/&do=findComment&comment=54632 
  
1.Download latest clover and bootpack for my 5450_HD5500. 
2.Install step by step 
3. After this "Repair permission and rebuild cache. Run command from terminal"  and when i reboot notebook i have error. 
 
E5450_HD5500.zip