Locked out of own sites by Raz anti spam registration plugin

I can’t log on to my sites, actually all three of them, so I am not sure what version of wordpress I am using, but I think the most up to date one is most likely. I have already tried restoring my database to a time before I had the plugin on one of my sites from my host, but this has not worked. I get the message
Fatal error: Cannot use object of type WP_Error as array in /home/content/83/10211183/html/althing/wp-content/plugins/raz-captcha/raz-captcha.php on line 590
It looks like many people have had this problem, but I see no solution and the developer of the plugin does not have a working email. I did download this as a wordpress plugin so I am hoping that there may be some fix to this.