Can't see map after renaming fields using Table Manager plugin

Question

I'm quite the beginner at using QGIS and I'm not sure what I did.

I tried renaming two of my columns/fields using the plugin Table Manager, and after changing the names, my map no longer appears. I feel that it should be an easy fix but can't figure out what to do at all.

Answer 1

Have you used a styling depending on the fields you just have renamed?

You can add the datasource a second time (the field names should have changed there already), copy the style if necessary and delete the first layer entry.