Kega Fusion, OS Sierra issues

I’ve updated to OS Sierra and started to have issues with running Kega Fusion. When I try to open the application I either get the error message ‘cannot run app’, or a crash screen with the following:

Process: Kega Fusion [1694]
Path: /Applications/Kega Fusion.app/Contents/MacOS/Kega Fusion
Identifier: uk.co.reptilia-design.Kega_Fusion
Version: ???
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: Kega Fusion [1694]
User ID: 501

Date/Time: 2016-08-10 21:29:14.824 +0100
OS Version: Mac OS X 10.12 (16A284a)
Report Version: 12
Anonymous UUID: F31FA321-390C-D5FE-D909-D76A01D80E4A

Sleep/Wake UUID: 8F72A38A-56C4-4122-84F2-0A8739C578BB

Time Awake Since Boot: 930 seconds
Time Since Wake: 270 seconds

System Integrity Protection: enabled

Crashed Thread: Unknown

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000241499f5
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]

Backtrace not available

Unknown thread crashed with X86 Thread State (32-bit):
eax: 0x248b8b5b ebx: 0xbffffca8 ecx: 0x241499f5 edx: 0x00000001
edi: 0xbffffcdc esi: 0x00000000 ebp: 0xbffffc68 esp: 0xbffffc20
ss: 0x00000023 efl: 0x00010297 eip: 0x000011bb cs: 0x0000001b
ds: 0x00000023 es: 0x00000023 fs: 0x00000000 gs: 0x0000000f
cr2: 0x241499f5

Logical CPU: 0
Error Code: 0x00000004
Trap Number: 14

Binary images description not available

External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 2579
thread_create: 0
thread_set_state: 0

I've been using what I think is the most up to date version and I've downloaded Xcode and installed to no avail. I haven't yet reset the permissions in disk utility, as though I can run first aid on the disk it doesn't give me the option to reset any permissions.

.Anyone got any ideas as to how I rectify this? Thank you!