This is the trace, when I activate debugging:
Original exception: [YZeDxUS0lqKYW3f0LRik4AAAAAU] /index.php?title=Hauptseite Error: Class 'Vector\FeatureManagement\Requirements\LatestSkinVersionRequirement' not found
Backtrace:
from /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/ServiceWiring.php(54)
#0 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}(MediaWiki\MediaWikiServices)
#1 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/services/src/ServiceContainer.php(416): Wikimedia\Services\ServiceContainer->createService(string)
#2 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/MediaWikiServices.php(279): Wikimedia\Services\ServiceContainer->getService(string)
#3 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/SkinVector.php(72): MediaWiki\MediaWikiServices->getService(string)
#4 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/SkinVector.php(90): SkinVector->isLegacy()
#5 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/object-factory/src/ObjectFactory/ObjectFactory.php(244): SkinVector->__construct(array)
#6 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/object-factory/src/ObjectFactory/ObjectFactory.php(150): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec(array, array)
#7 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/skins/SkinFactory.php(125): Wikimedia\ObjectFactory\ObjectFactory->createObject(array, array)
#8 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/context/RequestContext.php(456): SkinFactory->makeSkin(string)
#9 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/context/ContextSource.php(163): RequestContext->getSkin()
#10 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/OutputPage.php(2632): ContextSource->getSkin()
#11 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/MediaWiki.php(939): OutputPage->output(boolean)
#12 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/MediaWiki.php(952): MediaWiki::{closure}()
#13 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/MediaWiki.php(559): MediaWiki->main()
#14 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/index.php(53): MediaWiki->run()
#15 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/index.php(46): wfIndexMain()
#16 {main}
Exception caught inside exception handler: [YZeDxUS0lqKYW3f0LRik4AAAAAU] /index.php?title=Hauptseite Error: Class 'Vector\FeatureManagement\Requirements\LatestSkinVersionRequirement' not found
Backtrace:
from /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/ServiceWiring.php(54)
#0 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer::{closure}(MediaWiki\MediaWikiServices)
#1 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/services/src/ServiceContainer.php(416): Wikimedia\Services\ServiceContainer->createService(string)
#2 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/MediaWikiServices.php(279): Wikimedia\Services\ServiceContainer->getService(string)
#3 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/SkinVector.php(72): MediaWiki\MediaWikiServices->getService(string)
#4 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/skins/Vector/includes/SkinVector.php(90): SkinVector->isLegacy()
#5 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/object-factory/src/ObjectFactory/ObjectFactory.php(244): SkinVector->__construct(array)
#6 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/vendor/wikimedia/object-factory/src/ObjectFactory/ObjectFactory.php(150): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec(array, array)
#7 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/skins/SkinFactory.php(125): Wikimedia\ObjectFactory\ObjectFactory->createObject(array, array)
#8 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/context/RequestContext.php(456): SkinFactory->makeSkin(string)
#9 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/context/ContextSource.php(163): RequestContext->getSkin()
#10 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/OutputPage.php(2632): ContextSource->getSkin()
#11 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/exception/MWExceptionRenderer.php(158): OutputPage->output()
#12 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/exception/MWExceptionRenderer.php(77): MWExceptionRenderer::reportHTML(Error)
#13 /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/exception/MWExceptionHandler.php(107): MW
When I activate PHP error reporting, I have this information additionally, but this is only a notice, so no problem:
Notice: Undefined offset: 1 in /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/objectcache/SqlBagOStuff.php on line 1090 Notice: Undefined offset: 1 in /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/objectcache/SqlBagOStuff.php on line 1090 Notice: Undefined offset: 1 in /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/objectcache/SqlBagOStuff.php on line 1090 Notice: Undefined offset: 1 in /var/www/vhosts/yourchoice.ch/wiki.yourchoice.ch/includes/objectcache/SqlBagOStuff.php on line 1090 MediaWiki internal error.