codelgniter model error

I am new here,and this is my first post..i am here ,to have a probelm,that it...

this is model controler error...please solve it where is wrong...

1..first open screenshot file,,name ..error.png ,,,that is error on local host...

2.then see code Au.php
then

3.then see code. blog.php

please tell anybody expert me where is wrong and solve it and give me right code..

I am waiting response..

Attached Files

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  Au.txt (Size: 167 bytes / Downloads: 82)
  Blog.txt (Size: 356 bytes / Downloads: 73)