Sometimes when you install a wordpress plugin and click on “activate” you may get a white screen immediately and there is no way to go back and change it or to disable it. For that matter, you will be unable to even login to your wordpress site as there will only be white screen everywhere. When this first happened to me I really panicked. But ultimately I found a solution.
Causes:: As mentioned this white screen usually appears after you install a plugin or change some php code somewhere and there is no way you can undo it normally like we do.
Solution: : There is only one way to fix this. You need to login to your FTP client where your site is hosted. You can use a software like Filezilla for this purpose. Steps I took to resolve the WordPress White Scren of Death.
1. Opened a FTP client using Filezilla.
2. Connected to Website FTP.
3. Go to: WP-Content folder.
4. Rename “Plugins” Folder to “Plugins_Old”.
5. Create new empty folder called “plugins”
6. This will disable all the WordPress plugins.
7. Log into WordPress and verify that you no longer have the White Screen.
8. Make sure all plugins are disabled.
9. Delete “plugins” folder you just created.
10. Rename “plugins_old” to “plugins”.
11. Log back into WordPress.
12. Enable plugins one at a time to see which one was causing the issue.
OR
If you know which plugin caused the problem you can just rename that particular plugin folder in step 10 under the “plugins” folder and follow the next few steps. Even a PHP syntax error can cause a white screen so make sure you know what you are doing before modifying PHP code….