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I posted a page successfully last week on my site, logged out and didn't think anything else about it. Now, when I go to mysite.com/umbraco I just get a white screen and a load of error messages in the console.
Any ideas on what might have caused this and how I can fix it.
I've asked my hosting company to also have a look to see if anything changed on the server over the last week.
May be password format issue. Basically things to check are whether your passwords are being held in plain text in the database or whether they're hashed, then check whether your web.config file contains passwordFormat="Hashed" in the membership settings. If the passwords in the database are hashed then you'll need to include passwordFormat="Hashed" in your membership settings, if not, passwordFormat="Hashed" can be removed from your web.config.
I know it's been dealt with before here but I can't find any specific posts.
Hope this helps...
Try accessing it in a different browser.. I have a vague recollection of a cache issue that does this.
I've tried different browsers, different PC's, even from different locations :)
Do you have the 301 URL tracker package installed?
I had something similar once where it went a bit crazy and tried to add a redirect for */umbraco
I just trunced the table and it worked again...
Nope. Don't have the URL tracker installed.
I've just cleared the Client Dependancy cache and also incremented the version number and still no luck.
Think it could be an issue with lazyload.js - maybe.
Lots of issues in the console
Hmm then I'm running out of ideas.
Does the front end still work? Is it running from SQL Server / CE? Can you log into the DB?
Check the following:
Front end works fine. All sections of the site work for a visitor.
It's very strange that it's broken without me touching anything.
I can't check the permissions but I can ask the support team to check. Is there a list of permissions all folders should have sometwhere for V7?
You can find the list of permissions for all folders and files here https://our.umbraco.org/documentation/Getting-Started/Setup/Server-Setup/permissions
Hope this helps,
I've asked my hosting provider to check the permissions. Hoping that is the reason for the blank screen.
well, all the permissions have been double checked and they are all fine.
So I'm back to square one, trying to find out what is causing the issue.
Any other suggestions?
What version of Umbraco are you running?
Are you using SQL Server (have you checked the connection string?).
Is there anything in the App_data/logs that might help?
7.3.1 on SQL Express 2014. It's been running without any problems for a while. I'm just wondering if it's a failed login issue, but I can't access my DB until I get back home later tonight to check the tables.
Anything in the file logs?
The front end can stay up using the umbraco.config xml cache... you still might be missing Umbraco files or it could be a DB issue. I'd still check all the Umbraco files and DLLs are present.
I've had a look in the log files and got this:
2015-11-03 10:47:08,109  ERROR Umbraco.Core.UmbracoApplicationBase - [P9144/T1/D2] An unhandled exception occurred
System.ArgumentNullException: Value cannot be null.
Parameter name: source
at System.Linq.Enumerable.Count[TSource](IEnumerable`1 source)
at ASP._Page_Views_Partials_umbLatestBlogWidget_cshtml.Execute() in e:\virtualservers\sdndcjzl\www.mydomain.me\wwwroot\Views\Partials\umbLatestBlogWidget.cshtml:line 33
Line 33 is
if (userLanguages.Count() > 0)
within a foreach
@foreach (var post in blogArchive.Children.OrderByDescending(b => b.GetPropertyValue("publishedDate")).Take(3))
var userLanguages = Request.UserLanguages;
if (userLanguages.Count() > 0)
ci = new CultureInfo(userLanguages);
ci = CultureInfo.InvariantCulture;
ci = CultureInfo.InvariantCulture;
Still unable to get in to the admin panel.
Can anyone suggest what might have gone wrong with this partial view? I can provide a link to the site if it helps.
Is that the last error in the log just after you try to log in? It looks more front end to me.
Have you checked the files in Umbraco and the dlls are there?
I'd check back further in the log - I think you might have a red herring there but ....
Test it - back up that partial and replace it with a blank empty partial. See if you can get past that error it?!
I take it you have Articulate installed based on that partial name?
Hmm .. actually I've found a forum post with someone who's backend went screwy..
Back up then try Shannon's advice (second from bottom post).
Thanks, I tried the suggestion but still nothing.
I looked in the log files as well and there is nothing getting flagged up in the logs when I try and access the admin dashboard.
It's all a bit frustrating! One day it works, the next it's like this.
Also cleared out the partial and you are right, its a false positive. Still no access to the login screen.
What would happen if I downloaded a fresh version of Umbraco and went through the upgrade procedure, would that fix any missing file issues that might be causing the site not to work?
Would I lose any data? Obviously I'll take a backup of the current database but just wanted to check.
Owain - have you tried downloading the site and a copy of the SQL DB first. See if it runs locally - then you can rule out missing files and focus on an environmental issue?
Other than that - your suggestion should just start the upgrade process (be sure to merge your config settings though - especially your SQL db conn string).
Interestingly, trying to get it working on my local environment, I'm getting a DB error -
Umbraco cannot start. A connection string is configured but the Umbraco cannot connect to the database.
Well, just to keep anyone else up to date with this, I've now got the local copy throwing a more detailed error message.
Invalid object name 'cmsContentType'.
No idea what that means but I'll keep on digging :)
cmsContentType is the name a DB table in the SQL DB.
Is it missing? I'd suspect it's more likely it Umbraco just can't connect to the DB and that's the first exception thrown.
Take your DB connection string from your web.config (which I'm assuming you've changed to be the local details.. you'll have needed to have created a local copy of the DB as your live DB server is likely firewalled to not accept remote connections) and use them to connect via the SQL tools to test them.
More and more it sounds like the issue with your live site are the DB connection details.
Check your web.config - around line 52 you'll see something like this:
<add name="umbracoDbDSN" connectionString="server=STEVE-SQL\SQLEXPRESS;database=UmbracoV7_3;user id=sa;password=YOURPASSWORD" providerName="System.Data.SqlClient" />
Cheers for your continued help Steve.
I've now got the site running on my local dev environment and I get a login screen but when I put in my credentials I just get a white screen and then a couple of seconds later get the login page again and a message saying my session has timed out.
Going to search the forum to see if anyone else has had similar issues.
The above issue was with IE and cookies. After clearing them on my local environment I can now log in to the backoffice on my localhost but after restoring the DB and files to the live server I'm still locked out of my site.
Raised another ticket with the support team at my hosting company to find out what might be causing this.
Have you tried restoring everything in the "Umbraco" and "Umbraco_Client" folders? Perhaps some files got deleted (this happened to me once due to some faulty hardware).
Note that you'd have to delete a few folders under "App_Data/TEMP/", restart the application pool, and clear your browser cache to see that take effect.
I took a complete backup, restored it on my local environment, got it all up and running and then put it back on the live server and still I can't access the backoffice.
Getting close to just deleting the site and uploading it all again from scratch.
Have you tried visiting the URL of one of the resources that is producing a 404 not found message in your console to see if it can be accessed from your browser?
Deleted the App_Data/Temp folder and now getting
"Umbraco cannot start. A connection string is configured but the Umbraco cannot connect to the database." Error.
At least it's an error now!
That error indicates the web server can't connect to the database server. This could be due to a number of things. Some possibilities:
Thanks for everyone's help during this issue. It turns out that the hosting company had installed a new security tool which was blocking the admin panel. They changed the config and I'm now back up and running.
Frustrating to find this out after 2 weeks of questions, backups, restores, edits and deletions!
Just a note. I had a similar blank white screen for my backend.
My culprit was that I had enabled trace in my web.config.
I removed it and it works fine.
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