Blank white page is a PHP error. Reasons you’d get that error are: 1) Bad theme 2) Bad plugin 3) Bad install/upgrade (4) you exhausted the memory limit (5) It could also mean that there is an issue with your web hosting server. Since the problem can be caused by any number of things, it may require a lot of troubleshooting. 1 and 2 are the most common. Start with these basic troubleshooting steps:
– Clear your browser’s cookies and all cache.
– If that does not resolve the issue, try switching to the unedited default, core-bundled Theme (such as Twenty Fourteen) for a moment using the WP dashboard to rule out any theme-specific issue. If you don’t have access to your admin area, you can switch to the default theme by renaming your current theme’s folder in wp-content/themes and adding “-old” to the end of the folder name using via FTP or SFTP or whatever file management application your host provides. Alternately, you can remove other themes except the default theme. That will force your site to use it.
– If above steps do not resolve the issue, try resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems (because the hooks remain unless plugins completely removed or some plugins stick around in cached files. So by renaming the folder, you break them and force them inactive).
