WordPress Broken Plugin or Theme:
Most of web developer or WordPress administrator face problem to suddenly crash/broken their website on server or localsystem and specially it has happen after install any new plugin or theme.
Actually There could be chance that when you install any plugin or theme which is not properly developed by plugin or theme author. We get blank page after install plugin or theme. Even sometime we can access theme in admin but not from client side.
Because of that we are not able to reach wp-admin or admin dashboard, Even front site have also crashed.
It is seem big problem but there is also very easy solution for same. You have to go to plugin or theme directory under the wp-content directory and rename the last installed plugin or theme.
Now try to run front side or admin side you should able to run once again WordPress site.