```
[2020-09-28 09:29:4030 14:50:35] exception.ERROR: [136549176826cecb9adf5dc9e162b7f22eae08ce9ad82973] /w/api.php?action=help&recursivesubmodules=1 InvalidArgumentException from line 29 of /srv/mediawiki/tags/2020-09-25_13:55:54/includes/libs/Message/ScalarParam.php: Scalar parameter must be a string, number, or MessageValue;ArgumentCountError from line 44 of /srv/mediawiki/workdir/includes/api/ApiEditPage.php: Too few arguments to function ApiEditPage::__construct(), got boolean {"exception":"[object] (InvalidArgumentException(code: 0): Scalar parameter must be a string, number2 passed in /srv/mediawiki/workdir/vendor/wikimedia/object-factory/src/ObjectFactory.php on line 184 and at least 3 expected {"exception":"[object] (ArgumentCountError(code: 0): Too few arguments to function ApiEditPage::__construct(), or MessageValue; got boolean at /srv/mediawiki/tags/2020-09-25_13:55:54/includes/libs/Message/ScalarParam.php:292 passed in /srv/mediawiki/workdir/vendor/wikimedia/object-factory/src/ObjectFactory.php on line 184 and at least 3 expected at /srv/mediawiki/workdir/includes/api/ApiEditPage.php:44)
[stacktrace]
#0 /srv/mediawiki/tags/2020-09-25_13:55:54/includes/libs/Message/ListParamworkdir/vendor/wikimedia/object-factory/src/ObjectFactory.php(30): Wikimedia\\Message\\ScalarParam184): ApiEditPage->__construct('boolean'Object(ApiMain), true'threadaction')
#1 /srv/mediawiki/tags/2020-09-25_13:55:54/includes/libs/ParamValidator/TypeDef/EnumDef.php(164): Wikimedia\\Message\\ListParam->__construct('comma'workdir/vendor/wikimedia/object-factory/src/ObjectFactory.php(102): Wikimedia\\ObjectFactory::getObjectFromSpec(Array, Array)
#2 /srv/mediawiki/tags/2020-09-25_13:55:54/includes/libs/ParamValidator/ParamValidator.php(806): Wikimedia\\ParamValidator\\TypeDef\\EnumDef->getHelpInfo('pcrights', workdir/includes/api/ApiModuleManager.php(183): Wikimedia\\ObjectFactory->createObject(Array, Array)
#3 /srv/mediawiki/tags/2020-09-25_13:55:54/includes/api/Validator/ApiParamValidator.php(416): Wikimedia\\ParamValidator\\ParamValidator->getHelpInfo('pcrights', Arrayworkdir/includes/api/ApiModuleManager.php(155): ApiModuleManager->instantiateModule('threadaction', Array)
#4 /srv/mediawiki/tags/2020-09-25_13:55:54/includes/api/ApiHelp.php(500): MediaWiki\\Api\\Validator\\ApiParamValidator->getHelpInfo(Object(ApiQueryContributors), 'pcrights', Array, Arrayworkdir/includes/api/ApiBase.php(546): ApiModuleManager->getModule('threadaction')
#5 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiHelpBase.php(6171780): ApiHelp::getHelpInternal(Object(DerivativeContext), Array, Array, ArrayBase->getModuleFromPath('threadaction')
#6 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiHelp.php(617452): ApiHelp::getHelpInternal(Object(DerivativeContext), Array, Array, ArrayBase->getFinalParamDescription()
#7 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiHelp.php(167): ApiHelp::getHelpInternal(Object(DerivativeContext), Array, Array, Array)
#8 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiHelp.php(54): ApiHelp::getHelp(Object(DerivativeContext), Array, Array)
#9 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiMain.php(156570): ApiHelp->execute()
#10 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiMain.php(54550): ApiMain->executeAction()
#11 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/includes/api/ApiMain.php(51621): ApiMain->executeActionWithErrorHandling()
#12 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/api.php(90): ApiMain->execute()
#13 /srv/mediawiki/tags/2020-09-25_13:55:54workdir/api.php(45): wfApiMain()
#14 {main}
","exception_id":"136549176826cecb9adf5dc9"e162b7f22eae08ce9ad82973","exception_url":"/w/api.php?action=help&recursivesubmodules=1","caught_by":"entrypoint"} []
```
Please make the exception message more detailed. Now I have no idea what is causing this.