Bashtop crashing almost immediately (Termite & ZSH (also bash))

**Describe the bug**
After start up, Bashtop crashes almost immediately. It gets through the splash screen, and displays normally for about three to five seconds, then shuts down back to command prompt.

**To Reproduce**
run bashtop (using termite)

**Expected behavior**
bashtop not crashing.

**Info (please complete the following information):**
- Bashtop version: 0.9.12
- (Linux) Linux distribution and version: ArcoLinux (arch)
- (Linux) Data collection type (/proc or psutil): Not sure what this means
- Terminal used: Termite
- Font used: Hack Nerd Font
- Bash version, "bash --version" (version 4.4 or above is required): Bash 5.0.17. But using zsh. ZSH version 5.8. (this also happens in bash, exact same bug)
- Locales: output of "locale -v" --

LANG=en_US.utf8
LC_CTYPE="en_US.utf8"
LC_NUMERIC=en_US.UTF-8
LC_TIME=en_US.UTF-8
LC_COLLATE="en_US.utf8"
LC_MONETARY=en_US.UTF-8
LC_MESSAGES="en_US.utf8"
LC_PAPER=en_US.UTF-8
LC_NAME=en_US.UTF-8
LC_ADDRESS=en_US.UTF-8
LC_TELEPHONE=en_US.UTF-8
LC_MEASUREMENT=en_US.UTF-8
LC_IDENTIFICATION=en_US.UTF-8
LC_ALL=

**Additional context**

contents of `$HOME/.config/bashtop/error.log`
attached below.
[error.log](https://github.com/aristocratos/bashtop/files/4808697/error.log)