Hello @ramkharwar,
Please update your version of Tutor LMS to the latest build 2.1.3.
Next, flush cache from your active cache plugin and temporarily deactivate your cache plugin. This shall resolve the issue. You can then look for an option from your cache plugin to reduce cache lifespan to 48 hours max. If you are using Jetpack then please don’t use any additional page optimize or another cache plugin.