Not loading webservices on Object Repository folder from a previusly saved project

Hi, I created a project to test some SOAP WebServices but, after closing and re-open the project, the test objects that I created under the Object repository folder are not showed and the execution ends with an excpetion.

06-24-2019 10:41:14 AM response = sendRequest(findTestObject(“SOAP examples/Fleet/Delivery Order”))

Elapsed time: 0.348s

Unable to send request (Root cause: java.lang.IllegalArgumentException: Request object is null
at com.kms.katalon.core.webservice.helper.WebServiceCommonHelper.checkRequestObject(WebServiceCommonHelper.java:22)
at com.kms.katalon.core.webservice.keyword.builtin.SendRequestKeyword$_sendRequest_closure1.doCall(SendRequestKeyword.groovy:39)
at com.kms.katalon.core.webservice.keyword.builtin.SendRequestKeyword$_sendRequest_closure1.call(SendRequestKeyword.groovy)
at com.kms.katalon.core.keyword.internal.KeywordMain.runKeyword(KeywordMain.groovy:68)
at com.kms.katalon.core.webservice.keyword.builtin.SendRequestKeyword.sendRequest(SendRequestKeyword.groovy:38)
at com.kms.katalon.core.webservice.keyword.builtin.SendRequestKeyword.execute(SendRequestKeyword.groovy:33)
at com.kms.katalon.core.keyword.internal.KeywordExecutor.executeKeywordForPlatform(KeywordExecutor.groovy:56)
at com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords.sendRequest(WSBuiltInKeywords.groovy:40)
at com.kms.katalon.core.webservice.keyword.WSBuiltInKeywords$sendRequest.call(Unknown Source)
at Validating Error Response.run(Validating Error Response:16)
at com.kms.katalon.core.main.ScriptEngine.run(ScriptEngine.java:194)
at com.kms.katalon.core.main.ScriptEngine.runScriptAsRawText(ScriptEngine.java:119)
at com.kms.katalon.core.main.TestCaseExecutor.runScript(TestCaseExecutor.java:337)
at com.kms.katalon.core.main.TestCaseExecutor.doExecute(TestCaseExecutor.java:328)
at com.kms.katalon.core.main.TestCaseExecutor.processExecutionPhase(TestCaseExecutor.java:307)
at com.kms.katalon.core.main.TestCaseExecutor.accessMainPhase(TestCaseExecutor.java:299)
at com.kms.katalon.core.main.TestCaseExecutor.execute(TestCaseExecutor.java:233)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:114)
at com.kms.katalon.core.main.TestCaseMain.runTestCase(TestCaseMain.java:105)
at com.kms.katalon.core.main.TestCaseMain$runTestCase$0.call(Unknown Source)
at TempTestCase1561390866485.run(TempTestCase1561390866485.groovy:21)
)

It si not taking the file

Were you able to resolve it .If yes then how did you do that? @salazarmjc