You'll need to say more about exactly what's happening, but this would generally be a problem with your internet connection, not a problem in Zotero.

Whatever the specific problem is, make sure you've reproduced it in Troubleshooting Mode (Help → "Restart in Troubleshooting Mode…”), which temporarily disables all plugins.

Please don't paste the contents of reports here. All we need is the Report ID, which you already provided.

But I responded above, and at this point there's nothing else we can say. You'll need to respond to what I said.

You can re-enable your plugins one by one and restart Zotero after each one until you find the one that's causing the problem.

https://s3.amazonaws.com/zotero.org/images/forums/u9087717/1ghza1pi5j98ff2iyssq.png

there is a new problem when i am trying to re-enable the plugins it shows "unresponsive" .