I have this same bug in 18.04
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https://bugs.launchpad.net/bugs/628104
Title:
update-manager crashes: AptDaemonError: org.debian.apt: Could not
cancel transaction
To manage
Public bug reported:
SMBIOS 2.8 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Dell Inc.
Product Name: Vostro 3458
Version: 01
Serial Number: F792D72
UUID: 4C4C4544-0037-3910-8032-C6C04F443732
Wake-up Type: Power