Fellow Drummerworld members:
I found that I too was getting this same "Oops" message over the last couple of days.
So, I decided to try an old computing tip that has helped me before in the past when thing like this glitch would arise on other websites. Basically, you need to delete the cookies for the Drummerworld website from your browser (I'm using Chrome). This has seemed to correct this specific issue, at least for me it has. Sometimes when websites introduce something new, or change the overall design of their site, clearing the cookies for that site often helps in clearing up any "new" glitches that might occur.
You'll have to sign in to your account again once you clear the site's cookies, but the "Oops" message has seem to go away by doing so.
I hope that this helps.