I recently got a new computer and all of a sudden my Vanilla Forums statistics chart/graph on the dashboard stopped loading.

The console in Safari showed the following Javascript error:

TypeError: ‘null’ is not an object (evaluating ‘rowStates.length’) in graph.js:163

I suspected that it must be a setting in Safari and so it was. You can open Safari’s preferences and under the Privacy > Block cookies and other website data setting, you can change it from “From third parties and advertisers” to “Never”.

That resolves the problem and your charts will work again.