provide a detailed error if there is a template issue
provide a detailed error if there is a template issue

fix ChicagoBoss/ChicagoBoss#379

7i11/ChicagoBoss,solatis/ChicagoBoss,solatis/ChicagoBoss,powermedia/ChicagoBoss,powermedia/ChicagoBoss,uselessd/ChicagoBoss,lamptt/ChicagoBoss,aherranz/ChicagoBoss,aherranz/ChicagoBoss,yunkai/ChicagoBoss,danikp/ChicagoBoss,frkarl/ChicagoBoss,synlay/ChicagoBoss,ChicagoBoss/ChicagoBoss,ChicagoBoss/ChicagoBoss,synlay/ChicagoBoss,uselessd/ChicagoBoss,frkarl/ChicagoBoss,danikp/ChicagoBoss,yunkai/ChicagoBoss,lamptt/ChicagoBoss,7i11/ChicagoBoss