copyq Crashes when I start or stop using multiple monitors

**Describe the bug**
I am using copyq on macbook.
I use a hub which connects to two monitors. When I connect that hub with my macbook using thunderbolt, copyQ crashes (or exits not sure).

I installed copyq using brew

**To Reproduce**
Steps to reproduce the behavior:
1. start copyQ (minimized) on macbook
2. connect to multiple monitors

**Expected behavior**
CopyQ will continue to work.

**Version, OS and Environment**
(Get details from `copyq version` command if possible.)
-v3.9.3
- Mac OS, 10.14.5 (18F203)

**Additional context**
Same happens when I go back from multiple monitors to just laptop screen

Here are logs from `copyq 'copy(info("log"))'`
```

less +F /Users/zain/Library/Application\ Support/copyq/copyq/copyq.log

CopyQ Note [2020-01-30 18:53:05.769] : Ended activity
CopyQ Note [2020-01-30 19:01:21.023] : Ended activity
CopyQ ERROR [2020-01-30 19:12:59.082] : Connection lost!
CopyQ Note [2020-01-30 19:12:59.085] : Ended activity
CopyQ Note [2020-01-30 19:13:05.298] : Ended activity
CopyQ Note [2020-01-30 19:13:05.764] : Ended activity
CopyQ Note [2020-01-31 11:13:57.647] : Ended activity
CopyQ Note [2020-01-31 11:13:57.678] : Ended activity
CopyQ Note [2020-01-31 11:13:57.688] : Ended activity
CopyQ Note [2020-01-31 11:13:57.739] : Ended activity
CopyQ Note [2020-01-31 11:14:02.585] : Ended activity

```

note that I took out the thunder bolt and put my computer and closed my laptop screen at the end of my work day around
`2020-01-30 19:12`

And started my laptop and started my copyq at 11:13 today
`2020-01-31 11:13`