I've used PingPlotter off and on for the last 20 years on Windows. I've tried it several times on the Mac since it was released. It crashes every single time I start it. I just downloaded the latest version today, same crash on startup.

Apple CrashReporter gives me this:
Process: PingPlotter [4571]
Path: /Volumes/VOLUME/*/PingPlotter.app/Contents/MacOS/PingPlotter
Identifier: com.pingman.pingplotter.mac
Version: 5.11.3 (4924)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: PingPlotter [4571]
User ID: 502

Date/Time: 2019-07-29 13:25:43.142 -0700
OS Version: Mac OS X 10.11.6 (15G22010)
Report Version: 11
Anonymous UUID: 0C19D79C-EEB8-EABB-FA34-F5DF13FC087B


Time Awake Since Boot: 190000 seconds

System Integrity Protection: enabled

Crashed Thread: 0 tid_160b Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Thread 0 Crashed:: tid_160b Dispatch queue: com.apple.main-thread
0 liblitehtml.dylib 0x000000010d435165 litehtml::html_tag::draw_children_box(void*, int, int, litehtml::position const*, litehtml::draw_flag, int) + 213
1 liblitehtml.dylib 0x000000010d4356fd litehtml::html_tag::draw_children_box(void*, int, int, litehtml::position const*, litehtml::draw_flag, int) + 1645
2 liblitehtml.dylib 0x000000010d4369f6 litehtml::html_tag::draw_stacking_context(void*, int, int, litehtml::position const*, bool) + 598
3 liblitehtml.dylib 0x000000010d40d438 Draw(DocContainer*, int, int, litehtml::position) + 40
4 ??? 0x000000010b5c6cf8 0 + 4485573880
5 ??? 0x000000010d4f9926 0 + 4518287654
6 com.pingman.pingplotter.mac 0x0000000103fa9101 mono_jit_runtime_invoke + 1441
7 com.pingman.pingplotter.mac 0x00000001040a6504 mono_runtime_try_invoke + 148
8 com.pingman.pingplotter.mac 0x00000001040a93a6 mono_runtime_invoke + 38
9 com.pingman.pingplotter.mac 0x000000010419e5bd native_to_managed_trampoline_10(objc_object*, objc_selector*, _MonoMethod**, CGRect, unsigned int) + 333
10 com.pingman.pingplotter.mac 0x00000001041d01f1 -[LiteHtmlSharp_Mac_LiteHtmlNSView drawRect:] + 129
11 com.apple.AppKit 0x00007fff9a3c87be -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inGraphicsContext:CGContext:topView:shouldChangeFontReferenceColor:] + 1331
12 com.apple.AppKit 0x00007fff9a3c8156 __46-[NSView(NSLayerKitGlue) drawLayer:inContext:]_block_invoke + 242
13 com.apple.AppKit 0x00007fff9a3c7caf -[NSView(NSLayerKitGlue) _drawViewBackingLayer:inContext:drawingHandler:] + 2403
14 com.apple.AppKit 0x00007fff9a3c7341 -[NSView(NSLayerKitGlue) drawLayer:inContext:] + 108
15 com.apple.QuartzCore 0x00007fff93a8ea05 CABackingStoreUpdate_ + 3494
16 com.apple.QuartzCore 0x00007fff93a8dc59 ___ZN2CA5Layer8display_Ev_block_invoke + 59
17 com.apple.QuartzCore 0x00007fff93a8d645 CA::Layer::display_() + 1565
18 com.apple.AppKit 0x00007fff9a3c6318 _NSBackingLayerDisplay + 641
19 com.apple.AppKit 0x00007fff9a3b8878 -[_NSViewBackingLayer display] + 818
20 com.apple.QuartzCore 0x00007fff93a7f38d CA::Layer::display_if_needed(CA::Transaction*) + 603
21 com.apple.QuartzCore 0x00007fff93a7eeb5 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 35
22 com.apple.QuartzCore 0x00007fff93a7e389 CA::Context::commit_transaction(CA::Transaction*) + 277
23 com.apple.QuartzCore 0x00007fff93a7dfd4 CA::Transaction::commit() + 508
24 com.apple.QuartzCore 0x00007fff93a89863 CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 71
25 com.apple.CoreFoundation 0x00007fff998dbfc7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
26 com.apple.CoreFoundation 0x00007fff998dbf37 __CFRunLoopDoObservers + 391
27 com.apple.CoreFoundation 0x00007fff998bae48 CFRunLoopRunSpecific + 328
28 com.apple.HIToolbox 0x00007fff916ed935 RunCurrentEventLoopInMode + 235
29 com.apple.HIToolbox 0x00007fff916ed677 ReceiveNextEventCommon + 184
30 com.apple.HIToolbox 0x00007fff916ed5af _BlockUntilNextEventMatchingListInModeWithFilter + 71
31 com.apple.AppKit 0x00007fff9a25fdf6 _DPSNextEvent + 1067
32 com.apple.AppKit 0x00007fff9a25f226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454
33 com.apple.AppKit 0x00007fff9a253d80 -[NSApplication run] + 682
34 com.pingman.pingplotter.mac 0x0000000103ea7679 xamarin_dyn_objc_msgSend + 217
35 ??? 0x00000001098601c5 0 + 4454744517
36 ??? 0x0000000104973e79 0 + 4371988089
37 com.pingman.pingplotter.mac 0x0000000103fa9101 mono_jit_runtime_invoke + 1441
38 com.pingman.pingplotter.mac 0x00000001040a4abf mono_runtime_invoke_checked + 127
39 com.pingman.pingplotter.mac 0x00000001040ab93e mono_runtime_exec_main_checked + 110
40 com.pingman.pingplotter.mac 0x0000000103f07cb9 mono_jit_exec + 297
41 com.pingman.pingplotter.mac 0x0000000103f0acb4 mono_main + 11156
42 com.pingman.pingplotter.mac 0x0000000103ea7f49 xamarin_main + 1305
43 com.pingman.pingplotter.mac 0x0000000103ea8f14 main + 36
44 libdyld.dylib 0x00007fff8b4165ad start + 1

It continues on a few pages...