As miguel mentioned, based on the screenshot your template might be empty or this is a mistake in your split ;)
Try checking your userlib folder for duplicate jar versions, seems like an older jar version is being used which causes the NoSuchMethodError. Remove older versions of jar files from the userlib folder and redeploy to test.
That looks like you have older copy of the apache commons io library in your userlib folder. This could be because of a module upgrade or you could have two modules that have imported different versions.
To fix this, go into your userlib and look any modules with commons-io-X.X.jar in their title. Keep the version with the highest revision number, and delete the others.
Good luck!
Hi,
From the screenshot it seems like you're not finding the templat/template is empty.