Today when I search for an Intellij idea plugin in the File->Settings->Plugins, it says nothing to show. And I check the log, I find that
2019-06-17 14:11:20,200 [ 111589] INFO - .ide.plugins.PluginManagerMain - Main plugin repository is not available ('org.xml.sax.SAXParseException; lineNumber: 30025; columnNumber: 46; XML document structures must start and end within the same entity.'). Please check your network settings.
I am pretty sure my network is OK. I don't know when or how I modify some configuration somewhere by accident.
Is there anyway to roll back to the orginal configuration for this repository?