Installation problem

Hi all,
I just finished installing the WP-united plugin, and the PhpBB forum on my VPS..
After pointing the right location for the phpbb.php – i get this error message:

WP-United Setup / Status

WP-United needs to connect to phpBB in order to work. On this screen you can set up or disable the connection.

Current Status: Disabled

You need to install the WP-United phpBB MOD.

Click here to download the modification package. You can apply it using AutoMod (recommended), or manually by reading the install.xml file and following these instructions. When done, click “Connect” to try again.
phpBB Location

WP-United needs to know where phpBB is installed on your server. Click “Change Location” to change the stored location.

Path selected: /home/wwwfabricator/public_html/forum/phpbb/config/ Change Location »

Any idea why?
Thanks,
Amir.

BTW, My configuration:

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Free community support is available from the WP-United forum. Please search there for any other users who may be experiencing the same problem, and discuss any issues with fellow users.

Please copy and paste the following information into a new topic post when you are seeking support. This will help us understand your setup at a glance. It is sanitized to protect your private server information and contains BBCode formatting.

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[b]WP-United Version[/b] : 0.9.2.8-r0
[b]WordPress Version[/b] : 4.0.1
[b]PHP Version[/b] : 5.4.33
[b]WP-United enabled?[/b] : No
[b]WordPress Home URL[/b] : http://san.it/
[b]WordPress Base URL[/b] : http://san.it/
[b]WordPress Plugin URL[/b] : http://san.it/ised/all/ele/
[b]phpBB URL[/b] : Unknown
[b]Plugin Path[/b] : /ments/are/hidden/ised/all/ele/
[b]WordPress Path[/b] : /ments/are/hidden/
[b]phpBB Path[/b] : /ments/are/hidden/for/safety/some/
[b]Active plugins[/b] : contact-form-7/wp-contact-form-7.php, cr3ativ-carousel/cr3ativ-carousel.php, cr3ativ-portfolio/cr3ativ-portfolio.php, cr3ativ-staff/cr3ativ-staff.php, creativ-shortcodes/creativ-shortcodes.php, easy-digital-downloads-frontend-submissions-product-details-widget/edd-fes-product-details.php, easy-digital-downloads-related-downloads/edd-related-downloads.php, easy-digital-downloads/easy-digital-downloads.php, easy-image-gallery/easy-image-gallery.php, edd-commissions/edd-commissions.php, edd-fes/edd-fes.php, edd-recommended-products/recommended-products.php, edd-reviews/edd-reviews.php, edd-simple-shipping/edd-simple-shipping.php, edd-social-login/edd-social-login.php, edd-wish-lists/edd-wish-lists.php, pricetable/pricetable.php, quick-setup/quick-setup.php, responsive-lightbox/responsive-lightbox.php, revslider/revslider.php, shortcodes-ultimate/shortcodes-ultimate.php, single-post-template/post_templates.php, wp-united/wp-united.php, wp-video-posts/wpvp.php
[b]Current theme[/b] : SQUARECODE-WP
[b]Allocated memory[/b] : 43122.3703704M
[b]Memory limit[/b] : 256M
[b]Locale[/b] : en_US
[b]integrateLogin[/b] : 0
[b]showHdrFtr[/b] : NONE
[b]wpSimpleHdr[/b] : 1
[b]dtdSwitch[/b] : 0
[b]phpbbCensor[/b] : 1
[b]wpPageName[/b] : page.php
[b]phpbbPadding[/b] : 6-12-6-12
[b]xposting[/b] : 0
[b]phpbbSmilies[/b] : 0
[b]avatarsync[/b] : 1
[b]integcreatewp[/b] : 1
[b]integcreatephpbb[/b] : 1
[b]xpostautolink[/b] : 0
[b]xpostspam[/b] : all
[b]xpostforce[/b] : -1
[b]xposttype[/b] : excerpt
[b]xpostprefix[/b] : [BLOG]
[b]cssMagic[/b] : 1
[b]templateVoodoo[/b] : 1
[b]useForumPage[/b] : 1

https://ww.wp.xz.cn/plugins/wp-united/