Theme Blogs Mu Recently installed than cleaned up the plugins now not working anmore properly

On the site i Installed the theme and rearanged my site around it. Everything went well i am satisfied with the the but i somehow messed it up.

I Deleted some Comments and some Plugins I thought where unneccesary now it is not working any more.

If you go to and srol down you will see that the service section doesn´t work properly anymore. Please help me with this as soon as possibel

Thank u in advance