Multiple Issues

[Forcemu]

Hello there. I got some issues with my forum that I'll list down hoping that someone could offer a help or solution regarding those matters.

1. Report Post
-Whenever I click on report post button, it will direct me to a page where I will enter the reason for reporting post. However, After clicking submit, it will show something like report was successful however I can't see any report filed anywhere in the forum or in admin CP. Even as a Mail or PM. How do I fix that?

2. Email verification
-Whenever a new user registers in my forum, they do not receive an email confirmation containing the activation codes or link. How do I fix that?

3. "SOME" threads can't be opened
-There are some threads that work after posting it. However after some time, those threads suddenly do not work. Whenever you click it, everything just goes blank. Like all gray and nothing shows up. This only happens on a few threads. However some important threads are affected. How do I fix that?

4. Can see who has viewed the thread
-I have enabled the option "Can View Who Read A Thread". I believe that's the option where you can see all users who has viewed the thread. I've done that in other forum. However in here, I can only see who is currently viewing the thread and not everyone who has viewed the thread.