Starting WordPress in Safe mode
1. Navigate to [Information] menu on your site
2. Scroll down to Emergency Actions section
3. Check type of Safe mode deactivate all plugins and/or changing default theme.
4. Then click [Launch WordPress as safe mode] button.
5. Log in WordPress and check safe mode is working.
Plugins
No plugins are activated.
Themes
Default theme is activated (WordPress 4.9's default theme is TwentySeventeen)