Hello James Zandreiatti !

If you mean your site provided to me then it has several issues for the fine conversation of video:

1) these parameter post_max_size = 8388608 means that you can't upload files with the size more than 8 Mb.

2) this Cron Job is wrong:

*/24 * * * * /usr/bin/php -q [your path]periodic/cron.php 

it should be launched every minute (* * * * *)

3) this line

Last cron jobs execution - None

that even this delayed Cron hasn't been executed.

So you may upload small videos but without running Cron Jobs it will be not converted to be played on the site.