Service cannot be activated

Service cannot be activated

Exception Details

Service cannot be activated

An item with collection already exists

Solution:

Ensure the installation is done in all machines, and is installed on the WFE​.

Check for multiple binding.

Check back connection host name is added correctly in the registry.To check this follow the screen.

The back connection host name should have the access URL configured.

Check the memory of the system. Try giving an iisreset of memory is too high.

Check if there is any change in web.config file of SharePoint site(SharePoint:80)-adding or altering the web.config tag will cause this issue.