wpematico is anyone having problems with this plugin

Hi, i would like to know if anyone is having problems with this plugin wpematico

I have installed it and when you press home it comes up with the site name with /wpematico after it and this happens also when you put the site name in

If you disable the plugin then it comes up with the above but if you enable it then it comes up with a 404 error

can anyone let me know how to solve this problem please