FileList::init() failed: ls_dir_wrapper() failed: Unable to logon user + Logon failure: unknown user name or bad password

I have referred the following steps to sort out the error :

steps to recreate the error : Login into plesk cp >> domain's cp >> browse file manager. Here is the error :

------
---------------------- Debug Info -------------------------------
0: FileManagerUIPointer.php:709
FileManagerUIPointer->accessItem(string 'GET', NULL null)
1: client.domain.hosting.file-manager.php:86
plesk__client__domain__hosting__file_manager->accessItem(string 'GET', NULL null)
2: UIPointer.php:601
UIPointer->access(string 'GET')
3: plesk.php:43
------

Solutions :

1. RDP >> Mycomputer >>right click >> properties >>manage >>user & group >>click on users>> find the user(domain name) >>right click and click on properties >> uncheck 'password disable option'.

2. Go to run>>cmd>> and execute following query to retrieve the password of the user's admin area of the domain. For my case I executed the following query :

Example :
------
C:\>"%plesk_bin%"\dbclient --direct-sql --sql="select su.login, a.password from
accounts a, sys_users su where a.id=su.account_id and su.login='dhelalqamar.com
'"
login password
dhelalqamar.com domain_passwd
------

Note : Replace only login name here

3. Execute following command to be recognized the password by the system :

net user login_name password

Example :

====
C:\>
net user dhelalqamar.com qwertyu

The command executed successfully
====

Now try to browse the file manager. Error will be vanished :)
By : blog.snapshotit.com