trevorellis Please could you tell us which website you did log into?
I logged into your main website as you can see from image below
As you can see it is showing the recaptcha V2
Error showed is referred to a wrong key added to the plugin -
I have also installed and enabled Joomla ReCaptcha plugin with key used in other plugin and error showing is the same as you can see from image below .
So you should generate a correct recaptcha key for your website from HERE - the one used now from both plugins is not vaild for your website.
Hope i clarified definitively the issue -
Regards