Matomo 4.0.4
./console queuedtracking:process
vendor/matomo/device-detector/Parser/Device/AbstractDeviceParser.php line 924:
Return value of DeviceDetector\Parser\Device\AbstractDeviceParser::getShortCode() must be of the type string, int returned

version to
return (string) \array_search($brand, self::$deviceBrands) ?: '';