Here is the full log:
Sideloadly version 0.21.1, Windows 10.0, amd64
Using IPA file: C:/Users/usopp/Downloads/King of Thieves Hack No Jailbreak Cheats 2.42 Hacked IPA by iOSGods.com.ipa: c4cac0e1c2bf3c2b1a9ccd4016722f8e
Checking iOS version...
iOS version 13.3.1, will mangle bundleID
Obtaining team ID
Using team "My Name" (Individual) with id 787GCU6Y3P
Making sure device ID 510609d4d10c7b635217c6134c46dce1d75b725d is registered
Device 510609d4d10c7b635217c6134c46dce1d75b725d is already registered
Checking private key
Looking up app ID
Using app ID "King of Thieves iOSGods com" with id XBHN33NT83
Signing...
Connecting...
Temporarily removed 2 profile(s)
Uploading...
Installing...
Installing 5%: CreatingStagingDirectory
Installing 15%: ExtractingPackage
Installing 20%: InspectingPackage
Installing 20%: TakingInstallLock
Installing 30%: PreflightingApplication
Installing 30%: InstallingEmbeddedProfile
Installing 40%: VerifyingApplication
Installation failed: 3892346881 ApplicationVerificationFailed (Failed to verify code signature of /private/var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.oJJeLM/extracted/Payload/thieves.app/PlugIns/notifications-service.appex : 0xe8008001 (An unknown error has occurred.))
Restored 1 profile(s)
ERROR: Guru Meditation 6020bc@526:f11511 3892346881: ApplicationVerificationFailed (Failed to verify code signature of /private/var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.oJJeLM/extracted/Payload/thieves.app/PlugIns/notifications-service.appex : 0xe8008001 (An unknown error has occurred.))