Rarely you may see an error resulting from the CSRF security check. This happens when either (1) cookies are disabled in your browser or (2) a page - more specifically a form - is left open and the data is not submitted or saved for a long time, generally more than an hour.
If the check fails persistently upon logging in, it is likely that your browser is preventing cookies from being set. A quick search of the web for "Enabling Cookies" and the name of the browser you are using will lead you to articles on how to look into this solution.
If the check fails intermittently, it is likely due to a stagnant form. As a security precaution, our system times the form out assuming the request is not a legitimate one since it was not received shortly after we expected it. We have taken steps to limit the frequency for which this is encountered, but it is not possible to eradicate it entirely without defeating the purpose of the security check in the first place.
To address this issue, you should begin by refreshing the page by clicking reload. Then, and to prevent this error in the future, try to submit/save your information in a more timely manner.
If you continue to receive this error and reloading the page does not solve the issue, do not hesitate to get in touch with us.