Can't log in

I have installed Piwik to onprop19.org/piwik and each time I try to log in, it won’t let me. It just refreshes the page and brings me back to the login screen. I’ve tried changing the password (using password recovery feature) multiple times, but this doesn’t solve it. I don’t know what the problem is.

When I type in an incorrect password I get the normal error:

Error: Username & Password not correct

But whenever I type in the correct password, it just reloads the page and doesn’t give me any errors.

Does anyone know what the issue is?

Thanks,
-Rich

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