WARNING [2] include(somepath/templates_c/%%B0^B01^B019F522%%login.htm.php) [function.include]: failed to open stream: No such file or directory on Line No 1871 in somepath/Smarty.class.php Error!: An internal error occurred during runtime.
Any body please tell me why this error is occuring..
Obviously there is a file missing: templates_c/%%B0^B01^B019F522%%login.htm.php
Perhaps this is happening, because you have some non-ascii chars in your filename, and your OS and/or php implementation can't work with this?
Or for some reason smarty believes it already compiled a file when it is not. So I would try do delete the whole folder with the compiled templates. And let Smarty do a complete rebuild.
Looks like your cache has been corrupted or isn't working correctly. templates_c is the cache folder.
Remove all the files in templates_c
Also, make sure that the permissions of templates_c are set correctly. I believe that folder needs read/write and maybe also execute permissions