Custom script issue

Please help on the below error…!

Error executing CustomScriptAction
com.workfusion.studio.rpa.recorder.playback.PlaybackException: Error executing TemplateAction[templateName=CustomScriptAction.ftl,id=9,name=Optional[CustomScriptAction],parent=-1,nextSibling=10,arguments=ActionArguments[delay=[0],timeoutMs=[10000],xsi:type=[recorder:CustomScriptAction, recorder:CustomScriptAction],name=[testing],pollingInterval=[300],active=[true],script=[import groovy.sql.Sql

@CustomScriptAction(
output = ‘flist’
)
def customScript(){

			def dlist = [] 				
			def url = 'jdbc:mysql://localhost:3306/employee'
			def user = 'root'
			def password = 'emp1234'
			def driver = 'com.mysql.jdbc.Driver'
			def sql = Sql.newInstance(url, user, password, driver)
			sql.eachRow('select distinct eName from tbl_emp' ) 
			{					
				dlist.add("${it.eName}")		
				}
			 sql.close()
			 flist = dlist //RList.of(dlist.sort())		 
							 		 		
			}	],awaitTimeout=[5000]]]
  at com.workfusion.studio.rpa.recorder.playback.flow.StandardControlFlow.execute(StandardControlFlow.java:54)
  at com.workfusion.studio.rpa.recorder.playback.action.template.TemplateAction.execute(TemplateAction.java:28)
  at com.workfusion.studio.rpa.recorder.playback.action.template.TemplateAction.execute(TemplateAction.java:15)
  at com.workfusion.studio.rpa.recorder.playback.player.ActionPlayer.next(ActionPlayer.java:81)
  at com.workfusion.studio.rpa.recorder.player.PlaybackLogic.playNextAction(PlaybackLogic.java:154)
  at com.workfusion.studio.rpa.recorder.player.PlaybackLogic.run(PlaybackLogic.java:112)
  at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver cannot be found by com.workfusion.groovy-all_2.5.2
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:508)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at groovy.sql.Sql.loadDriver(Sql.java:730)
at groovy.sql.Sql.newInstance(Sql.java:457)
at groovy.sql.Sql$newInstance.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:152)
at CustomScript_customScript.customScript(Script2.groovy:21)
at CustomScript_customScript$customScript.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120)
at Script2.run(Script2.groovy)
at com.workfusion.studio.rpa.recorder.playback.shell.GroovyShellWrapper.executeScript(GroovyShellWrapper.java:48)
at com.workfusion.studio.rpa.recorder.playback.player.PlaybackContext.executeScript(PlaybackContext.java:108)
at com.workfusion.studio.rpa.recorder.playback.action.template.TemplateAction.executeBehavior(TemplateAction.java:33)
at com.workfusion.studio.rpa.recorder.playback.flow.StandardControlFlow.execute(StandardControlFlow.java:46)
at com.workfusion.studio.rpa.recorder.playback.action.template.TemplateAction.execute(TemplateAction.java:28)
at com.workfusion.studio.rpa.recorder.playback.action.template.TemplateAction.execute(TemplateAction.java:15)
at com.workfusion.studio.rpa.recorder.playback.player.ActionPlayer.next(ActionPlayer.java:81)
at com.workfusion.studio.rpa.recorder.player.PlaybackLogic.playNextAction(PlaybackLogic.java:154)
at com.workfusion.studio.rpa.recorder.player.PlaybackLogic.run(PlaybackLogic.java:112)
at java.lang.Thread.run(Thread.java:745)

Team,

can anyone help me on this issue.