Downloading updated app for Mac

[srandrews]

JamKazam-1.0.3708.dmg won't mount on:

El Capitan 10.11.6
Mac Pro (Mid 2010)
3.33 GHz 6-Core Intel Xeon Hackintosh

Here is why

macpro2010ownloads randrews$ hdiutil attach -verbose JamKazam-1.0.3708.dmg
Initializing…
DIBackingStoreInstantiatorProbe: interface 0, score 100, CBSDBackingStore
DIBackingStoreInstantiatorProbe: interface 1, score -1000, CBundleBackingStore
DIBackingStoreInstantiatorProbe: interface 2, score -1000, CRAMBackingStore
DIBackingStoreInstantiatorProbe: interface 3, score 100, CCarbonBackingStore
DIBackingStoreInstantiatorProbe: interface 4, score -1000, CDevBackingStore
DIBackingStoreInstantiatorProbe: interface 5, score -1000, CCURLBackingStore
DIBackingStoreInstantiatorProbe: interface 6, score -1000, CVectoredBackingStore
DIBackingStoreInstantiatorProbe: interface 0, score 100, CBSDBackingStore
DIBackingStoreInstantiatorProbe: interface 1, score -1000, CBundleBackingStore
DIBackingStoreInstantiatorProbe: interface 2, score -1000, CRAMBackingStore
DIBackingStoreInstantiatorProbe: interface 3, score 100, CCarbonBackingStore
DIBackingStoreInstantiatorProbe: interface 4, score -1000, CDevBackingStore
DIBackingStoreInstantiatorProbe: interface 5, score -1000, CCURLBackingStore
DIBackingStoreInstantiatorProbe: interface 6, score -1000, CVectoredBackingStore
DIFileEncodingInstantiatorProbe: interface 0, score -1000, CMacBinaryEncoding
DIFileEncodingInstantiatorProbe: interface 1, score -1000, CAppleSingleEncoding
DIFileEncodingInstantiatorProbe: interface 2, score -1000, CEncryptedEncoding
DIFileEncodingInstantiatorProbe: interface 0, score 900, CUDIFEncoding
DIFileEncodingNewWithBackingStore: CUDIFEncoding
DIFileEncodingNewWithBackingStore: instantiator returned 0
DIFileEncodingInstantiatorProbe: interface 0, score -1000, CSegmentedNDIFEncoding
DIFileEncodingInstantiatorProbe: interface 1, score -1000, CSegmentedUDIFEncoding
DIFileEncodingInstantiatorProbe: interface 2, score -1000, CSegmentedUDIFRawEncoding
DIDiskImageInstantiatorProbe: interface 0, score 1000, CUDIFDiskImage
DIDiskImageInstantiatorProbe: interface 1, score 0, CSparseBundleDiskImage
DIDiskImageInstantiatorProbe: interface 2, score 0, CSparseDiskImage
CRawDiskImage: data fork length 0x00000000042193FD (69309437) not a multiple of 512.
DIDiskImageInstantiatorProbe: interface 3, score -100, CRawDiskImage
DIDiskImageInstantiatorProbe: interface 4, score 0, CDARTDiskImage
DIDiskImageInstantiatorProbe: interface 5, score 0, CDiskCopy42DiskImage
DIDiskImageInstantiatorProbe: interface 6, score -1000, CNDIFDiskImage
DIDiskImageInstantiatorProbe: interface 8, score -100, CShadowedDiskImage
DIDiskImageInstantiatorProbe: interface 9, score -1000, CCFPlugInDiskImage
DIDiskImageInstantiatorProbe: interface 10, score -100, CWrappedDiskImage
DIDiskImageNewWithBackingStore: CUDIFDiskImage
DIDiskImageNewWithBackingStore: instantiator returned 0
Verifying…
Verification completed…
Error 0 (Undefined error: 0).
expected CRC32 $3F3C9835
Attaching…
DI_kextWaitQuiet: about to call IOServiceWaitQuiet...
DI_kextWaitQuiet: IOServiceWaitQuiet took 0.000004 seconds
2020-08-06 19:48:38.029 diskimages-helper[653:59163] DIHelperHDID serveImage: attaching drive
{
autodiskmount = 1;
"hdiagent-drive-identifier" = "97053CD4-FDBE-4BE6-ACC9-59B64F22F59D";
"unmount-timeout" = 0;
}
2020-08-06 19:48:38.030 diskimages-helper[653:59163] DIHelperHDID serveImage: connecting to myDrive 0x4D0B
2020-08-06 19:48:38.030 diskimages-helper[653:59163] DIHelperHDID serveImage: register _readBuffer 0x108aae000
2020-08-06 19:48:38.030 diskimages-helper[653:59163] DIHelperHDID serveImage: activating drive port 19211
2020-08-06 19:48:38.030 diskimages-helper[653:59163] DIHelperHDID serveImage: set cache enabled=TRUE returned SUCCESS.
2020-08-06 19:48:38.030 diskimages-helper[653:59163] DIHelperHDID serveImage: set on IO thread=TRUE returned SUCCESS.
2020-08-06 19:48:38.030 diskimages-helper[653:59163] -processKernelRequest: will sleep received
Volume check completed…
Mounting…
2020-08-06 19:48:38.237 diskimages-helper[653:59157] -remountReturningDictionary: detaching because no mountable filesystems.
Attaching…
Error 112 (no mountable file systems).
Fini$ng…
2020-08-06 19:48:39.604 diskimages-helper[653:59152] *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
DIHLDiskImageAttach() returned 112
hdiutil: attach failed - no mountable file systems