bug report kills the app

[combs]

After I fill in a bug report in the app's ? dialog, clicking Send causes this

Process:               volt [19748]
Path:                  /Applications/Volt.app/Contents/MacOS/volt
Identifier:            Volt
Version:               ???
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           volt [19748]
User ID:               504

Date/Time:             2019-07-23 12:23:02.463 -0400
OS Version:            Mac OS X 10.13.6 (17G7024)
Report Version:        12
Anonymous UUID:        ADE99F9B-919F-41E4-DFF8-5A83DF7744AF


Time Awake Since Boot: 1700 seconds

System Integrity Protection: enabled

Crashed Thread:        Unknown

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Backtrace not available

Unknown thread crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x00007fffb4900380  rcx: 0x00007ffeefbfdb88  rdx: 0x0000000000000000
  rdi: 0x0000000000000307  rsi: 0x0000000000000006  rbp: 0x00007ffeefbfdbc0  rsp: 0x00007ffeefbfdb88
   r8: 0x00007ffeefbfda50   r9: 0x00007ffeefbfdc20  r10: 0x0000000000000000  r11: 0x0000000000000206
  r12: 0x0000000000000307  r13: 0x0000000000000030  r14: 0x0000000000000006  r15: 0x000000000000002d
  rip: 0x00007fff7c005b66  rfl: 0x0000000000000206  cr2: 0x00007fffb48dd168
  
Logical CPU:     0
Error Code:      0x02000148
Trap Number:     133


Binary images description not available


External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 14
    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: 373039
    thread_create: 0
    thread_set_state: 0