Solution:
To fix WP Super Cache error message, follow the below points:
Step 1: Turn Off All Caching
Step 2: Deactivate and Delete the Plugin
Step 3: Remove Files From the Web Server
Step 4: Solve any .htaccess errors caused by WP Super Cache
Make sure that no WP Super Cache rules remain in your .htaccess file after you uninstall it by removing the Super Cache mod_rewrite rules from the file.
I hope it will help you to resolve issues which you faces