==== Error ====
* mwversion: `1.38.0-wmf.25`
* reqId: `fba0daf3-e9e9-42f8-8c29-ae9422a5434b`
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2022-03-08T20:17:44.000Z',to:'2022-03-09T19:19:00.810Z'))&_a=(query:(query_string:(query:'reqId:%22fba0daf3-e9e9-42f8-8c29-ae9422a5434b%22'))) | Find reqId in Logstash ]]
```name=normalized_message
[{reqId}] {exception_url} TypeError: Argument 1 passed to MediaWiki\Extension\Gadgets\GadgetRepo::getGadgetDefinitionTitle() must be of the type string, null given, called in /srv/mediawiki/php-1.38.0-wmf.25/extensions/Gadgets/includes/SpecialGadgets.ph
```
```name=exception.trace,lines=10
from /srv/mediawiki/php-1.38.0-wmf.25/extensions/Gadgets/includes/GadgetRepo.php(81)
#0 /srv/mediawiki/php-1.38.0-wmf.25/extensions/Gadgets/includes/SpecialGadgets.php(114): MediaWiki\Extension\Gadgets\GadgetRepo->getGadgetDefinitionTitle(NULL)
#1 /srv/mediawiki/php-1.38.0-wmf.25/extensions/Gadgets/includes/SpecialGadgets.php(37): MediaWiki\Extension\Gadgets\SpecialGadgets->showMainForm()
#2 /srv/mediawiki/php-1.38.0-wmf.25/includes/specialpage/SpecialPage.php(671): MediaWiki\Extension\Gadgets\SpecialGadgets->execute(NULL)
#3 /srv/mediawiki/php-1.38.0-wmf.25/includes/specialpage/SpecialPageFactory.php(1378): SpecialPage->run(NULL)
#4 /srv/mediawiki/php-1.38.0-wmf.25/includes/MediaWiki.php(315): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext)
#5 /srv/mediawiki/php-1.38.0-wmf.25/includes/MediaWiki.php(910): MediaWiki->performRequest()
#6 /srv/mediawiki/php-1.38.0-wmf.25/includes/MediaWiki.php(564): MediaWiki->main()
#7 /srv/mediawiki/php-1.38.0-wmf.25/index.php(53): MediaWiki->run()
#8 /srv/mediawiki/php-1.38.0-wmf.25/index.php(46): wfIndexMain()
#9 /srv/mediawiki/w/index.php(3): require(string)
#10 {main}
```
==== Notes ====
Reported by @Sjoerddebruin This started right after promoting group1 to wmf.25.