thumbnails problems (Minifrontpage)

Hi admin!

I read several post here but don't get solved my problem.
My component don't show thumbnails images, I have tested free component, paid component, Joomla 3 and e J3 k2 version. Here is my website: (link is on "Your Site Details")

I replicated module three times:

1. mansoryxt (That I would like to use)
2. carouselxt
3. portfolio

I already have deleted all images on /images/thumbnails/mod_minifrontpagepro

Some files and permissions:

4 drwxrwx--- 2 www-data www-data 4096 Jun 26 22:22 .
4 drwxrwx--- 5 www-data www-data 4096 Jun 26 21:54 ..
8 -rw-r--r-- 1 www-data www-data 5558 Jun 26 22:22 6308_237.jpg
8 -rw-r--r-- 1 www-data www-data 5558 Jun 26 22:22 6308_238.jpg
8 -rw-r--r-- 1 www-data www-data 5558 Jun 26 22:22 6308_239.jpg
4 -rw-r--r-- 1 www-data www-data 1832 Jun 26 22:22 6309_237_default.jpg
4 -rw-r--r-- 1 www-data www-data 1832 Jun 26 22:22 6309_238_default.jpg
4 -rw-r--r-- 1 www-data www-data 1832 Jun 26 22:22 6309_239_default.jpg

I alredy have cleaned cache for my website some times.

Can you help me?
Thanks.

Here I am! Thanks for fast reply.

I'm sorry.
I put this in Site Details again.