Google Analytics event tracking

Hello,
Great plugin. I am having some compatibility issues.
When the plugin is active, the event tracking from Contact Form 7 does not work.

This is the code i am using for tracking events in contact form 7, as recommended on their website:
on_sent_ok: "ga('send', 'event', 'Contact Form', 'submit');"

When I deactivate Contact Form 7 – PayPal Add-on, the events are tracked again.

Any ideas on how to track the events and keep this extension?

Thanks!

https://www.ads-software.com/plugins/contact-form-7-paypal-add-on/