I am currently not actively maintaining the tool. @Wurgl is doing this. I think he started adding the en.wikipedia, but maybe not for the web front end but only for the Wikipedia javascript tool.

I think, this was a copy of the "normal" wikihistory tool for english wikipedia. I think this isn't used anymore.

@jcrespo: Thanks. Looks like everything is back to normal.

Hi. I'm not able to recover, because there are some errors in the database. The database exists, the tables exist, too. But if I want to query a table, I always get the following error:

I can recreate s51412__data.dewiki_templatedata if needed. It will take some time but it would be possible.

I read all the messages but didn't find any reason, which would justify the disadvantages of breaking tools and forcing volunteers to change their code.
If it's as easy as Legoktm wrote, this simple transformation from JSON to PHP could simply be done in mediawiki. If it's not that easy, the format shouldn't be removed.

In T108628#1631362, @NiharikaKohli wrote:

Thanks for the information, @Elisardojm. I'm not very good at Spanish and German, could you explain a bit more on how the script works? Does it generate a new page listing all the errors in a page and suggested corrections?

It's a correct behavior, because the article "Deutschland" doesn't have any spelling mistakes.

Fixed that issue.

Thanks everyone for fixing this. Everything works now.