HI,

I am using v1.5.1, after installed the 3.1 version plugin, I receive a red error message "Please verify that you are not a robot" on both "contact me" page and "create new account" page. I tried uploading all the files in the plugin, also tried steps of pre-1.5.1 from scratch, lastly I deleted every file on the list, the same error still pops up! What could be the problem? How can I return to the stage before anything is being done? Thanks!

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