Hi
I don't think this is a wordfence issue, but lets look at your first issue
The problem seems to be in /web/conf/php5.ini if I am reading it right. Comments inside of scripts or code are commented out so the server knows not to try and execute them (side note: This is a great benefit to me as I tend to place a multitude of Phineas and Ferb jokes in mine - Aren't you a little young to be writing bash scripts? why yes I am) So a comment in a bah script is usually preceded by # like this:
#This is a bash script comment
php comments use ; or things like this:
/* your comment */
It looks like thats what the error is about. I'd look at that file and see if it has the # sign in front of the comments.
Now, having said that I doubt that is your problem. I would recheck my htaccess file and compare it against the default one wordpress provides (you should have a backup if you enabled falcon cache. I think we force you to do that. If not your error logs for apache should have more information about whats wrong. On the other hand there is a ton of google entries that would lead on to think it may be a php memory error. You might make sure that was set high enough.
tim