finally I have found the answer, the answer is in this link:
How To Fix The WordPress White Screen of Death (Theme/Plugin Error)
the answer is too odd! that was happened because new line character(enter) between close and open tag of php…like this:
in the line 11 you can see an example, when it have been delete every thing have been right!
Related Posts:
- Plugin: Google Analytics for Dashboard error – Timestamp is too far from current time
- Login with OpenID, similar to Stack Exchange sites?
- How can I make an Ajax login form work with FORCE_SSL_ADMIN enabled?
- Delete Custom Dashboard Widgets
- Editor access to plugin settings
- How to get user-meta from Social Login registered users?
- How to develop a community feature in the dashboard for multiauthor site
- Which hook should be used to validate custom form fields on the login form?
- How to create custom LOGIN and REGISTRATION forms?
- Remove Widgets in Dashboard
- How can I ‘reactivate’ .PHP files within a WP plugin that have been marked ‘inactive’?
- Prevent Brute Force Attack
- Login with email (WP Modal Login)
- Check if the front end user is log in or not
- How to create a word press user with hashedpassword
- Dashboard Disappears after Upgrade
- Is there any good tutorial to write custom login, registration and password recovery forms? [closed]
- Compatibility with RTL installations
- Dashboard Widget Form
- Frontend editing, Frontend user dashboard
- Use WordPress with a custom OAuth2 provider
- WordPress login with Phone Number [closed]
- Can I use a form in a dashboard widget?
- Cannot access wp-admin after disabling all plugin
- Force [wordpress_social_login] shortcode to display where it is embedded [closed]
- Determine Registered Admin Menus
- How do i login when i cant access wp-login.php?
- Single central login for front end users from any site
- How can I force users to a particular subdomain to log in for MU (Multisite)?
- “Request has expired” with “Make your site social” (Gigya) plugin
- How to remove admin main menu name repetition
- How to exclude certain files from the plugin editor?
- Sync User to cPanel webmail?
- How to use login_redirect with a user capability
- Login Customizer doesn’t change the background of the register form
- easy steps to make front end form without plugin
- Change wp-login to custom URL login page
- Allowed memory size exhausted problem
- How can i force wp-admin to use 2-column dashboard layout? [closed]
- Get ‘Headers already sent’ error for the plugin I am creating when I try to login
- Custom Login Page — wp_signon Headers Already Sent?
- I changed font of wordpress dashboard but it is slow!
- Theme My Login Shortcode Doesn’t Return Anything
- Possibility to login without password
- how do i change my website facebook login button to another text immediately user login? [closed]
- WordPress unable to write files in the server
- Is there a way to remove plugins in dashboard – where you cannot identify the slug by the plugins name?
- Creating a search form and displaying results
- Custom PHP Page Using WordPress login
- If I use an alternative login (e.g. CAS or other SSO) plugin, is my site protected from the recent brute force login attempts?
- Displaying URL Based on User Input from a Form W/in a Dashboard Widget
- Widget Screen Locked
- how to render dashboard widgets conditionaly in wordpress admin
- Janrain/Simple Modal under Redirected Domain
- Linking form to user meta fields
- WordPress Multisite Profile Picture Sync Error with Nextend Social Login Plugin
- How can I disable new plugin and theme install, but allow updates?
- Plugin or ways to limit number of users logging in the website,
- force logged in user to stay in the dashboard
- Use localized plugin name and description even when the plugin is disabled
- How to access a wordpress plugin page or add posts without doing it from the WordPress dashboard?
- Need help with Task assigning and rewarding as currency which withdrawable
- WordPress Dashboard add user password not working, etc
- Which membership plugin for a simple sign in? Personal areas for customers
- Discern a specific plugin’s action hooks
- How To Remove “All, Publish, Draft and Expired” in Events Dashboard
- Blank dashboard with no access
- Login/password protected “client page”
- WordPress Admin login redirect to homepage
- https rewrite not working for All in one security Brute force > rename login url
- On button click, redirect users to registration page instead of another page
- How can I show login popup when user clicks on download button
- How to show private pages based on a user’s role?
- Ajax response returns html code instead of user data
- Why does WordPress use cookies for /wp-admin and /wp-content/plugins for non-admin users [duplicate]
- wp_signon returns user, in popup window, but the user is not logged in
- wp_login_form() ignoring login_form action hook
- WordPress Dashboard organize posts based on categories
- Auto-login from backend
- wp-admin will not redirect to wp-login.php
- Adding google authenticator and use only email address of user
- Adding a Filter to Sidbar Login Plugin to Change Login Button Lable
- how to protect wordpress website
- WordPress ReAuth =1 Loop with wpCAS
- Advice on setting up private site
- Checking url from plugin [duplicate]
- Trouble Removing Plugin [closed]
- Change All Login/Signup Links in Plugin
- How do I to override login redirect on specific pages?
- How to create plugin list groups?
- Google adsense stats plugin? [closed]
- plugin for different writers [closed]
- How to resolve these findings from security audit
- ERROR: Cookies are blocked due to unexpected output – no access to FTP
- How to Find WordPress site has backdoor login Codes
- How to create a custom wordpress plugin for a specific functionality?
- WordPress Homepage Login
- Form with response button after on table after submission
- I cannot login after installing the wp-login timeout setting plugin
- Display Any Field fromAdmin Panel in Frontend via Shortcode?