```name=exception.trace,lines=10
#0 [internal function]: MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /extensions/Wikibase/repo/includes/Parsers/MwTimeIsoParser.php(162): preg_match(string, string, NULL)
#2 /extensions/Wikibase/repo/includes/Parsers/MwTimeIsoParser.php(130): Wikibase\Repo\Parsers\MwTimeIsoParser->parseFromOutputString(Language, string, integer, string)
#3 /extensions/Wikibase/repo/includes/Parsers/MwTimeIsoParser.php(100): Wikibase\Repo\Parsers\MwTimeIsoParser->reconvertOutputString(string, Language)
#4 /vendor/data-values/common/src/ValueParsers/StringValueParser.php(46): Wikibase\Repo\Parsers\MwTimeIsoParser->stringParse(string)
#5 /vendor/data-values/common/src/ValueParsers/DispatchingValueParser.php(58): ValueParsers\StringValueParser->parse(string)
#6 /extensions/Wikibase/repo/includes/Api/ParseValue.php(198): ValueParsers\DispatchingValueParser->parse(string)
#7 /extensions/Wikibase/repo/includes/Api/ParseValue.php(110): Wikibase\Repo\Api\ParseValue->parseStringValue(ValueParsers\DispatchingValueParser, string, NULL)
#8 /includes/api/ApiMain.php(1603): Wikibase\Repo\Api\ParseValue->execute()
#9 /includes/api/ApiMain.php(539): ApiMain->executeAction()
#10 /includes/api/ApiMain.php(510): ApiMain->executeActionWithErrorHandling()
#11 /api.php(83): ApiMain->execute()
#12 /srv/mediawiki/w/api.php(3): require(string)
#13 {main}
```