I need Urgent Help with these issues ..

Hello

I need Urgent Help with these issues ...

1. https://premium.wpmudev.org/forums/topic/i-am-trying-to-set-up-ultimate-facebook-plugin-sole#post-809598

2. https://premium.wpmudev.org/forums/topic/currently-i-am-developing-a-newspaper-site-single-post-has#post-808467

3. https://premium.wpmudev.org/forums/topic/htaccess-file-causing-404500-error?replies=3#post-809599
if any plugin messing with hatches file.. how to know.. I am using paid plugins and if free then from wp repository.

Please help me solve this issues.

Regards
Plaban