Cannot install macOS catalina update

Hi ,

Tried to applied a delta patch to my macos, but got this error. Anyone can help :)

2020-02-25 12:47:35+08 softwareupdated[988]: Attempting to adopt manual product: macOS 10.15.1 Update

2020-02-25 12:47:35+08 softwareupdated[988]: Could not create parent path for partial download: file:///var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068/C/com.apple.SoftwareUpdate/localhost/AdoptedManual/macOSUpd10.15.1.pkg (Error Domain=NSCocoaErrorDomain Code=513 "You don’t have permission to save the file “AdoptedManual” in the folder “localhost”." UserInfo={NSFilePath=/var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068/C/com.apple.SoftwareUpdate/localhost/AdoptedManual, NSUnderlyingError=0x7fab167173d0 {Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied"}})

2020-02-25 12:47:35+08 softwareupdated[988]: SoftwareUpdate: Could not create archive copy at /var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068/C/com.apple.SoftwareUpdate/localhost/AdoptedManual/macOSUpd10.15.1.pkg

2020-02-25 12:47:35+08 softwareupdated[988]: Failed to write state: Error Domain=NSCocoaErrorDomain Code=513 "You don’t have permission to save the file “com.apple.SoftwareUpdate.SUUpdateServiceDaemon.state” in the folder “C”." UserInfo={NSFilePath=/var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068/C/com.apple.SoftwareUpdate.SUUpdateServiceDaemon.state, NSUnderlyingError=0x7fab16720e20 {Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied"}}