for some reason all my templates are not working, and the one i just created has caused the problem please help
Please reset the Lightroom Preferences and then try it.
To reset your preferences, do the following: Quit Lightroom. Navigate to the preferences file:
Mac OS: /Users/[user name]/Library/Preferences/com.adobe.Lightroom5.plist.
Windows 7, 8: C:\Users\[user name]\AppData\Roaming\Adobe\Lightroom\Preferences\Lightroom 5 Preferences.agprefs
Rename the file Lightroom 5 Preferences.agprefs to Lightroom 5 Preferences.agprefs.old
Let us know if it helps.