Wikimedia\Timestamp\ConvertibleTimestamp::getTimestamp: The timestamp cannot be represented in the specified format
from /srv/mediawiki/php-1.36.0-wmf.27/vendor/wikimedia/timestamp/src/ConvertibleTimestamp.php(330)
#0 /srv/mediawiki/php-1.36.0-wmf.27/includes/libs/ParamValidator/TypeDef/TimestampDef.php(104): Wikimedia\Timestamp\ConvertibleTimestamp->getTimestamp(integer)
#1 /srv/mediawiki/php-1.36.0-wmf.27/includes/libs/ParamValidator/ParamValidator.php(597): Wikimedia\ParamValidator\TypeDef\TimestampDef->validate(string, string, array, array)
#2 /srv/mediawiki/php-1.36.0-wmf.27/includes/libs/ParamValidator/ParamValidator.php(551): Wikimedia\ParamValidator\ParamValidator->validateValue(string, string, array, array)
#3 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/Validator/ApiParamValidator.php(363): Wikimedia\ParamValidator\ParamValidator->getValue(string, array, array)
#4 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiBase.php(1045): MediaWiki\Api\Validator\ApiParamValidator->getValue(ApiQueryAllImages, string, array, array)
#5 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiBase.php(733): ApiBase->getParameterFromSettings(string, array, boolean)
#6 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiQuery.php(266): ApiBase->extractRequestParams()
#7 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiMain.php(1612): ApiQuery->execute()
#8 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiMain.php(592): ApiMain->executeAction()
#9 /srv/mediawiki/php-1.36.0-wmf.27/includes/api/ApiMain.php(563): ApiMain->executeActionWithErrorHandling()
#10 /srv/mediawiki/php-1.36.0-wmf.27/api.php(90): ApiMain->execute()
#11 /srv/mediawiki/php-1.36.0-wmf.27/api.php(45): wfApiMain()
#12 /srv/mediawiki/w/api.php(3): require(string)
#13 {main}Impact
2 of these seen since deploy of 1.36.0-wmf.27 (T271341) to all wikis.