Causing my website to crash ,,

Hi ,
The currency is not changing the name it still says Australian dollar when it switches to other currencies, but the exchange rate has changed. The plugin is causing my website to crash a few times.,, Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with this automated email.

In this case, WordPress caught an error with one of your plugins, WOOCS – WooCommerce Currency Switcher.
Cheers
Tom