Follow the simple steps to change the WordPress Theme ny editing MySql Tables(WordPress database). You might run into situations when you have access to only backend.

Change WordPress Theme

• Logn into MySQL Database for your site (Example : msql.example.com)
• Open the Database for your site ( DB_example)
• Open the Table wp_options
• Open Browse Tab
• Find the option’s template and stylesheet
• Edit the value to theme name you want to change (Example : default)
• Save the table

If some plugin have corrupted the theme files, using above change, you can set the default theme.

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