Selecting a value from the drop down

Hi

I need to select a value from the drop down. I would need to pass in the value through global variable to select. The value in the drop down is clickable. I tried to use select option by value but it requires an object.

The values are like this -
<//option class=“ng-tns-c6-2 ng-star-inserted” value=“[object Object]”>eng2child2

Console log -

e[31m❌ Unable to select option by value ‘eng2child213’ of object ‘Object Repository/Page_Engagement Center/span_All Audit Units_ui-dropdo (2)’ (Root cause: org.openqa.selenium.support.ui.UnexpectedTagNameException: Element should have been “select” but was "span"e[0;39m
e[31mBuild info: version: ‘3.7.1’, revision: ‘8a0099a’, time: '2017-11-06T21:07:36.161Z’e[0;39m
e[31mSystem info: host: ‘USIL6HEV7S’, ip: ‘10.1.199.6’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version: ‘10.0’, java.version: '1.8.0_181’e[0;39m
e[31mDriver info: driver.version: unknown)e[0;39m
2019-03-08 00:43:20.315 e[1;31mERRORe[0;39m e[36mc.k.katalon.core.main.TestCaseExecutor -e[0;39m e[31m❌ selectOptionByValue(findTestObject(“Page_Engagement Center/span_All Audit Units_ui-dropdo (2)”), AUname, false) FAILED.e[0;39m
e[31mReason:e[0;39m
e[31mcom.kms.katalon.core.exception.StepFailedException: Unable to select option by value ‘eng2child213’ of object ‘Object Repository/Page_Engagement Center/span_All Audit Units_ui-dropdo (2)’ (Root cause: org.openqa.selenium.support.ui.UnexpectedTagNameException: Element should have been “select” but was "span"e[0;39m
e[31mBuild info: version: ‘3.7.1’, revision: ‘8a0099a’, time: '2017-11-06T21:07:36.161Z’e[0;39m
e[31mSystem info: host: ‘USIL6HEV7S’, ip: ‘10.1.199.6’, os.name: ‘Windows 10’, os.arch: ‘amd64’, os.version: ‘10.0’, java.version: '1.8.0_181’e[0;39m
e[31mDriver info: driver.version: unknown)e[0;39m
e[31m at com.kms.katalon.core.keyword.internal.KeywordMain.stepFailed(KeywordMain.groovy:36)e[0;39m
e[31m at com.kms.katalon.core.webui.keyword.internal.WebUIKeywordMain.stepFailed(WebUIKeywordMain.groovy:65)

Please advise me on this… Thanks