Ok, that command-line parameter did the trick for me!

Thank you, W4rl0ck

I get the usual problem report dialog "nwjs quit unexpectedly."

Here are the important excerpts:

Identifier: io.nwjs.nwjs Version: 59.0.3071.115 (3071.115) Code Type: X86-64 (Native) Parent Process: launchd [281] Responsible: nwjs [1578]

Crashed Thread: 1 Dispatch queue: com.apple.root.default-overcommit-priority

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

Application Specific Information: XPC domain creation failed: duplicate services found, could not resolve: io.nwjs.nwjs.framework.AlertNotificationService.

Application Specific Signatures: Registration error: duplicate services found, could not resolve: io.nwjs.nwjs.f

Thread 1 Crashed:: Dispatch queue: com.apple.root.default-overcommit-priority 0 libxpc.dylib 0x00007fff8aae61b7 _xpc_runtime_init_once + 1288 1 libdispatch.dylib 0x00007fff9461228d _dispatch_client_callout + 8 2 libdispatch.dylib 0x00007fff946121fc dispatch_once_f + 79 3 libxpc.dylib 0x00007fff8aaea200 _xpc_connection_init + 64 4 libxpc.dylib 0x00007fff8aaea1b2 _xpc_connection_resume_init + 14 5 libdispatch.dylib 0x00007fff9461228d _dispatch_client_callout + 8 6 libdispatch.dylib 0x00007fff94614082 _dispatch_root_queue_drain + 326 7 libdispatch.dylib 0x00007fff94615177 _dispatch_worker_thread2 + 40 8 libsystem_pthread.dylib 0x00007fff960aeef8 _pthread_wqthread + 314 9 libsystem_pthread.dylib 0x00007fff960b1fb9 start_wqthread + 13