I Need Help with Modsettings.php

[RebelRose]

SMF Version: SMF 1.1 RC2
I finally got it to where I can install mods, thanks greatly to Redone, but now they are installed and they do not work, in the error log it shows this:

8: Undefined index: ob_googlebot_modname
File: /home/virtual/site80/fst/var/www/html/forum/Sources/ModSettings.php
Line: 147

8: Undefined index: Thank_You_Headline
File: /home/virtual/site80/fst/var/www/html/forum/Sources/ModSettings.php
Line: 143

8: Undefined index: ad_management
File: /home/virtual/site80/fst/var/www/html/forum/Sources/ModSettings.php
Line: 135

How can I fix this problem? Please I don't understand php or code very well so plain explanations.

Thanking you in advance

I figured it out myself 

[Chris K]

What was the solution?

I am getting this on some other files too.

[RebelRose]

What was the solution?

I am getting this on some other files too.

Oh I am so sorry, I did not see the post sooner, I have forgotten what I did. So Sorry.