Filter Table button crashes the page on Material-UI Next.

## Expected Behavior

I expect the Filter Table pop up to show up when I click to the button.

## Current Behavior

It crashes whole the page.
## Steps to Reproduce (for bugs)

https://codesandbox.io/s/muidatatables-custom-toolbar-forked-eff5p?file=/package.json

1. Open CodeSandbox link
2. Click the Filter Table button
## Your Environment

| Tech | Version |
|--------------|---------|
| Material-UI |5.0.0-alpha.12|
| MUI-datatables |3.5.0|
| React |16.13.1|
| browser |CodeSandbox|
|@emotion/core|10.0.35|
|@emotion/styled|10.0.27|
|react-dom|16.13.1|
|@material-ui/core|5.0.0-alpha.12|
|@material-ui/icons|4.9.1|

Open package.json in the linked CodeSandbox and reproduce the crash with the listed Material-UI, MUI-datatables, and React versions by clicking Filter Table. The work is done when the Filter Table pop-up appears without crashing the page; use the reproduction to identify the failing entry point before changing behavior.

Written by the indexing model from the issue text.