I found this discussion here because I get the same error message above in line 1 on different PCs when using nameGuzzler. What I have to do to get nameGuzzler to work again for me (looks like it works for other users).

Yes, looks good now. Thank you very much. BTW: One can not find this tool here as tag when adding a bug/request. "tool-quickstatements" or simply "quickstatements" is not listed in the tag browsing field below this textbox. That's why Aklapper rejected this task here as invalid.

Hi Magnus, thanks a lot for opening this again. You can't use the old batches for testing - all of them I corrected in the screen mode. I now created some new batches and will attach here some more lines for testing. Batches #18012 to #18015 you can use for testing of existing batches. Some more unused lines follow. A mistake can happen, if a team participated twice with a second team in the same championship like HM Petőfi or XIII. ker. Tanács SK. This I will correct manually.
Thanks a lot again.