What is "incorrect checksum for freed object - object was probably modified after being freed?"

Hello,

Thanks in advance for any help with the issue I am having.

I am printing psd files on an Epson 9900 printer through photoshop. Photoshop crashes when I send the file to the printer (not every time but maybe half of the times).

I see the following error in the log:

incorrect checksum for freed object - object was probably modified after being freed.

Does anyone know what this might mean?

I am running OSX 10.12 (Sierra)

Thanks again!

This is a larger portion of the log:

Process:               Adobe Photoshop CS6 [10128]

Path:                  /Applications/Adobe Photoshop CS6/Adobe Photoshop CS6.app/Contents/MacOS/Adobe Photoshop CS6

Identifier:            com.adobe.Photoshop

Version:               13.0.5 (13.0.5.44)

Code Type:             X86-64 (Native)

Parent Process:        ??? [1]

Responsible:           Adobe Photoshop CS6 [10128]

User ID:               501

Date/Time:             2017-01-18 02:13:29.710 -0500

OS Version:            Mac OS X 10.12 (16A323)

Report Version:        12

Anonymous UUID:        4F1BFEE7-28A8-ECE7-78A0-ACBED4335954

Sleep/Wake UUID:       2B93CC11-3F07-476D-A176-F141379B8125

Time Awake Since Boot: 97000 seconds

Time Since Wake:       4100 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_CRASH (SIGABRT)

Exception Codes:       0x0000000000000000, 0x0000000000000000

Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:

abort() called

*** error for object 0x18a3c8e10: incorrect checksum for freed object - object was probably modified after being freed.