Topic on Project:Support desk/Flow

We havent altered localsettings.php (to my knowledge) and now everyone is getting this error, seemingly out of nowhere, when people try to use their preferences area:

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[5ae6fcab633b45b38c47906d] /Special:Preferences MWException: Default '2' is invalid for preference imagesize of user 𝗔𝗿𝗰𝗵𝗮𝗻𝗴𝗲𝗹

Backtrace:

from /home/rabidpan/public_html/fascipedia/includes/preferences/DefaultPreferencesFactory.php(351)

1. 0 /home/rabidpan/public_html/fascipedia/includes/preferences/DefaultPreferencesFactory.php(260): MediaWiki\Preferences\DefaultPreferencesFactory->loadPreferenceValues(User, RequestContext, array)
2. 1 /home/rabidpan/public_html/fascipedia/includes/preferences/DefaultPreferencesFactory.php(1800): MediaWiki\Preferences\DefaultPreferencesFactory->getFormDescriptor(User, RequestContext)
3. 2 /home/rabidpan/public_html/fascipedia/includes/specials/SpecialPreferences.php(131): MediaWiki\Preferences\DefaultPreferencesFactory->getForm(User, RequestContext, string)
4. 3 /home/rabidpan/public_html/fascipedia/includes/specials/SpecialPreferences.php(109): SpecialPreferences->getFormObject(User, RequestContext)
5. 4 /home/rabidpan/public_html/fascipedia/includes/specialpage/SpecialPage.php(701): SpecialPreferences->execute(NULL)
6. 5 /home/rabidpan/public_html/fascipedia/includes/specialpage/SpecialPageFactory.php(1428): SpecialPage->run(NULL)
7. 6 /home/rabidpan/public_html/fascipedia/includes/MediaWiki.php(316): MediaWiki\SpecialPage\SpecialPageFactory->executePath(string, RequestContext)
8. 7 /home/rabidpan/public_html/fascipedia/includes/MediaWiki.php(904): MediaWiki->performRequest()
9. 8 /home/rabidpan/public_html/fascipedia/includes/MediaWiki.php(562): MediaWiki->main()
10. 9 /home/rabidpan/public_html/fascipedia/index.php(50): MediaWiki->run()
11. 10 /home/rabidpan/public_html/fascipedia/index.php(46): wfIndexMain()
12. 11 {main}

I just found this issue on one of my wikis. I don't suppose you ever found a fix?

For comparison, here's my backtrace...

[Z1oY54QmUfBG8HNxxUzIBQAAANI] /index.php?title=Special:Preferences MWException: Default '"0"' is invalid for preference math of user Pltee

Backtrace:

from /datalocal/www/html/mediawiki/includes/preferences/DefaultPreferencesFactory.php(298)

#0 /datalocal/www/html/mediawiki/includes/preferences/DefaultPreferencesFactory.php(250): MediaWiki\Preferences\DefaultPreferencesFactory->loadPreferenceValues()

#1 /datalocal/www/html/mediawiki/includes/preferences/DefaultPreferencesFactory.php(1681): MediaWiki\Preferences\DefaultPreferencesFactory->getFormDescriptor()

#2 /datalocal/www/html/mediawiki/includes/specials/SpecialPreferences.php(132): MediaWiki\Preferences\DefaultPreferencesFactory->getForm()

#3 /datalocal/www/html/mediawiki/includes/specials/SpecialPreferences.php(110): SpecialPreferences->getFormObject()

#4 /datalocal/www/html/mediawiki/includes/specialpage/SpecialPage.php(647): SpecialPreferences->execute()

#5 /datalocal/www/html/mediawiki/includes/specialpage/SpecialPageFactory.php(1366): SpecialPage->run()

#6 /datalocal/www/html/mediawiki/includes/MediaWiki.php(314): MediaWiki\SpecialPage\SpecialPageFactory->executePath()

#7 /datalocal/www/html/mediawiki/includes/MediaWiki.php(930): MediaWiki->performRequest()

#8 /datalocal/www/html/mediawiki/includes/MediaWiki.php(564): MediaWiki->main()

#9 /datalocal/www/html/mediawiki/index.php(53): MediaWiki->run()

#10 /datalocal/www/html/mediawiki/index.php(46): wfIndexMain()

#11 {main}