WordPress MU

Hello,
I created a blog on my subdomain. It works during 2 weeks but now it seems like an empty site. When I write its adress http://terakkiscyberworld.terakki.net/blogs, I see just an empty html page. What can be the reason for this?
Thank you so much for the reply

Did your host change anything?

My host said that I am experiencing this problem due to "custom scripting on the account." and they said they can'tdo anything for this. How can I reach my codes, or what can be the reason for this? Please help me, thank you a lot.

Is there a system like "system reloading" and returning to the date that the site is working?

That would be a question to ask your host.

You have a php error of some sort. Check your error logs.

I am very new to this system and also to open source systems. WMPU is installed on my subdirectory and there is no problem with this. But I am living the problem with one of my blogs. I know that this blog is installed on a virtual subdomain. So, can I handle the problem with files on my ftp? And also which files? Where is error logs? Maybe these questions are stupid questions but I really don't know what should I do. Thank you for your reply, please continue to help me

Where the error logs are is dependant on your host. There aren;t done with WPMU. Error logs are generated by your web account.

The only thing you can do via ftp is to go rename the plugins folder. Call it something like plugins-old. THen go look at your site and see if it loads.

Unfortunately it didn't work. I faund error logs. Ones I opened my main blog, 404 error seems, then dissappears. When I installed WMPU I encountered with this problem and write to you but it had dissappeared. Then I worked on the system during three weeks and then now one of my blog gone. IS is because of installation?

No, I decided it is not about installation process because I can use other blogs on other virtual subdomains..

Blank screen which as has already been explained is a PHP error. You need to ensure that PHP error logging is enabled and set to log to a file. These are php.ini parameters which may have been set. As Andrea has said the location of these error logs and how you view them is down to your host so you need to ask them how you can view your PHP error logs.

I have a similar problem. My WP blog went blank and I can't even access my admin panel. The error log states:

[21-Nov-2009 17:03:26] PHP Warning: move_uploaded_file(/home/workou6/public_html/afristaff.com//home/workou6/public_html/afristaff.com/wp-content/uploads/out-1.jpg) [function.move-uploaded-file]: failed to open stream: No such file or directory in /home/workou6/public_html/afristaff.com/wp-content/plugins/register-plus/register-plus.php on line 274
[21-Nov-2009 17:03:26] PHP Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpdhyqZE' to '/home/workou6/public_html/afristaff.com//home/workou6/public_html/afristaff.com/wp-content/uploads/out-1.jpg' in /home/workou6/public_html/afristaff.com/wp-content/plugins/register-plus/register-plus.php on line 274

So, since the log was referring to the "register plus" plugin and the out-1.jpg, I deleted them both. But still no luck. Any ideas?

oh, and i know it's not a server issue bc i have two other blogs hosted by the same server and they're just fine. The only difference seems to be the register plug plugin (which i never installed on any of my other wp blogs)

Those are warnings not errors. That looks like a file permission issue to be honest

@SteveAtty

Can it still be a permissions issue even if I haven't changed any permissions? I haven't made any changes to the site in about two weeks... and it was up yesterday???

The permissions are set at 755, should they be set differently?

the warnings were probably permission errors.

You have a white screen which is a fatal PHP error. So recheck your apache and php error logs.

Found this error in today's log..

[07-Dec-2009 12:40:55] WordPress database error MySQL server has gone away for query SELECT

have no earthly idea what it means, could be french for all i know!

And it goes on...

[07-Dec-2009 12:16:05] WordPress database error MySQL server has gone away for query SELECT * FROM wp_users WHERE user_login = 'Wilson' made by wp_signon, wp_authenticate, incrementFails, get_userdatabylogin, get_user_by
[07-Dec-2009 12:16:05] WordPress database error MySQL server has gone away for query SELECT COUNT(login_attempt_ID) FROM wp_login_fails WHERE login_attempt_date + INTERVAL 5 MINUTE > now() AND login_attempt_IP LIKE '41.215.120%' made by wp_signon, wp_authenticate, countFails
[07-Dec-2009 12:40:55] WordPress database error MySQL server has gone away for query SELECT wp_posts.* FROM wp_posts WHERE 1=1 AND wp_posts.ID = 5 AND wp_posts.post_type = 'page' ORDER BY wp_posts.post_date DESC made by require, wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts
[07-Dec-2009 12:40:55] WordPress database error MySQL server has gone away for query SELECT post_type, post_parent FROM wp_posts WHERE ID = 5 made by require, require_once, do_action, call_user_func_array, redirect_canonical
[07-Dec-2009 12:40:55] WordPress database error MySQL server has gone away for query SELECT * FROM wp_posts WHERE (post_type = 'page' AND post_status = 'publish') ORDER BY menu_order, post_title ASC made by require, require_once, include, get_header, locate_template, load_template, require_once, sandbox_body_class, wp_list_pages, get_pages

"database error" but what? or is this something altogether different?

error log began this way..

[18-Nov-2009 02:40:56] PHP Warning: Invalid argument supplied for foreach() in /home/workou6/public_html/afristaff.com/wp-content/themes/ashford/library/ashford_functions.php on line 286
[06-Dec-2009 14:19:25] WordPress database error MySQL server has gone away for query SELECT option_value FROM wp_options WHERE option_name = 'regplus_password' LIMIT 1 made by require, require_once, require_once, do_action, call_user_func_array, RegisterPlusPlugin->DefaultSettings, get_option
[06-Dec-2009 14:19:25] WordPress database error MySQL server has gone away for query SELECT option_value FROM wp_options WHERE option_name = 'regplus_code' LIMIT 1 made by require, require_once, require_once, do_action, call_user_func_array, RegisterPlusPlugin->DefaultSettings, get_option
[06-Dec-2009 14:19:25] WordPress database error MySQL server has gone away for query SELECT option_value FROM wp_options WHERE option_name = 'regplus_codepass' LIMIT 1 made by require, require_once, require_once, do_action, call_user_func_array, RegisterPlusPlugin->DefaultSettings, get_option

That usually implies there something wrong with your DB. Can you access it from something like phpMyAdmin?

Yes. what should i kook for?

what should i look 4. sorry.

repaired the tables in phpMyadmin,,,still nothing

The database server is timing out.

I am sorry for the late answew, I can see my error log file. It says:
[Sat Dec 5 01:19:47 2009] [error] [client 88.235.126.62] File does not exist: /var/chroot/home/content/p/h/i/philipf/html/blogs/wp-content/themes/mystique/favicon.ico

But it is strange, because I am using the mystique on my main site and it is working. On the site which seems like an empty page is on virtual domain and I used "channel" theme for it. So, it seems strange to me. I again downloaded the mystique and search for "favicon.ice" file and there isn't? SO, what should I do? what do you advise me? thank you so much

now I realized that I have mant error message and when I look at them I see that there are always the same errors for my other programs installed on my domain scuk as moodles. ALways it points "file doen't exist--favicon.ico" Can this help us?

favicon.ico is simply that the browsers are looking for a file called that, its just an apache 404 error so don't worry about it.

What happens if you switch your blogs back to the default WP theme? Does the site start working again?

I can not reach the admin panel of my blog with the problem.. Can we change the themes f blogs on virtual subdomain from the main site's admin panel? I can just deactivate the theme that I use from the main blog site. But still it isn't working..

"Can we change the themes f blogs on virtual subdomain from the main site's admin panel? "

Yes. Go to Site Admin -> Blogs, find the blog in question. Click the edit link that show up when you hover over the name.

When you get to that screen, scroll way down, look for "template" and "stylesheet". Change them both to default.