Critical error

Hello,
there is a problem with this new plugin of yours.
I have always used the other has always worked well.

I installed this new plugin of yours on a new site, with just woocommerce and wpbakery.
I configured your payment plugin, entered the paypal data manually, and after saving it no longer makes me access the settings. The page goes blank and an error message is returned.
–
A critical error has occurred on your website. Check the site administrator’s inbox for instructions.
–

I had to restore from the backup, because there was also no way to go inside the plugin settings, even if I uninstalled and reinstalled.

Thank you