Hi folks,
Sorry about this, and thanks for your patience. The issue should now be resolved - please post here to let us know if you’re still seeing the problem.
This was affecting users on shared-hosting plans, specifically preventing new rows from being added to data tables. Users on the Dedicated plan, those with Extra Server Resources, and Enterprise users were unaffected.
We will obviously investigate to work out the root cause here, but in the meantime everything should be back up and running.