I want to register a DeviceHQ account in DeviceHQ “Account Registration” web(https://www.devicehq.com/register),when I type all the information in “Account Registration” web,then I check the “Accept EULA”and click the “Create Account”button, it will appear a “Review Account Information”dialog,then I click the “OK”button. After that it will always encounter a problem—-“1 error prohibited this registration from being saved:•Invalid captcha response”.I use some web browser,such as IE、Google Chrome etc.How should I solve this problem??