Crash when closing app where New tab opened and Continue where you left off enabled

[tsvietOK]

Describe the bug
App crashing every time when user closes it with New tab opened and Continue where you left off enabled

To Reproduce
Steps to reproduce the behavior:

1. Go to Settigns -> On Startup -> Enable "Continue where you left off"
2. Open new tab
3. Close app
4. See error

Expected behavior
App should be closed properly without an error.

Desktop (please complete the following information):

• OS Version: [e.g. Windows 10 2004 19041.450]
• App version: [v0.13.4]

Log file
debug.txt

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[d2dyno1]

I'll investigate -
Was checking before if the path was null but what wasn't checking if the entire tab variable was null