An error occurs when downloading a paper

I was trying to save an item to the zotero library and zotero.org, but it says:

An error occurred while saving this item. See Troubleshooting Translator Issues for more information. The version of my zotero is 5.0.33.

The url is https://arxiv.org/pdf/1507.05135.pdf

Could you please help me for this issue? Thanks!
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