jekinkalariya,
Sorry that you are seeing this issue.
Which version of MyEclipse are you working with ? Can you please share the MyEclipse Installation Details from MyEclipse > Installation Summary > Installation Details ?
In MyEclipse 2015,to enable hot deployment, you must set the Tomcat deployment mode to “Use Tomcat auto deployment mode”.
Remove all the deployments from the Tomcat server, right click on the Tomcat server entry in the Servers view and select ‘Publish’. Double click on the Tomcat server to open the Overview page. Check the ‘Use Tomcat auto deployment mode” and save the changes.
Here is the screenshot for your reference :
Let us know how it works for you.