I can't run the project through TestOps

I have a functional system automation project, it is run by chrome, but when I add it to TestOps, and I try to run through Grid it doesn’t open chrome, which makes the project never run successfully.

How do I get chrome to open when I run there?

java.lang.NoClassDefFoundError: org/openqa/selenium/WebElement

2019-11-14 20:25:01 - [TEST_CASE][ERROR] - Test Cases/Base/AbrirNavegador: Test Cases/Base/AbrirNavegador FAILED.
Reason:
java.lang.NoClassDefFoundError: org/openqa/selenium/WebElement
    at AbrirNavegador.run(AbrirNavegador:18)
    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.TestSuiteExecutor.accessTestCaseMainPhase(TestSuiteExecutor.java:133)
    at com.kms.katalon.core.main.TestSuiteExecutor.accessTestSuiteMainPhase(TestSuiteExecutor.java:116)
    at com.kms.katalon.core.main.TestSuiteExecutor.execute(TestSuiteExecutor.java:83)
    at com.kms.katalon.core.main.TestCaseMain.startTestSuite(TestCaseMain.java:157)
    at com.kms.katalon.core.main.TestCaseMain$startTestSuite$0.call(Unknown Source)
    at TempTestSuite1573763093479.run(TempTestSuite1573763093479.groovy:35)
Caused by: java.lang.ClassNotFoundException: org.openqa.selenium.WebElement
    at Script1565101347100.run(Script1565101347100.groovy:18)
    ... 13 more'

Hi,
Could you explain your steps to run Grid ?

The first item to run is open Chrome, but this step already gives error.

Could you run your katalon project normally by GUI?

I’m facing the same error with katalonc 7.9.1. Any solutions?