check mark disappear after moving to new ip address
Thank you for all your help.
I found out the reason for a long time searching. Cause I moved an existing complicated website to a new ip address. The Advanced CSS/JS Aggregation module does affect images, css and js. 

Here are some solutions that I found might be useful:


Check $base_url in setting.php file (might be set as old url/ domain name/ ip address)
Uncommend "#RewriteBase /" in .htaccess file then flushing the cache (Do not try this unless you know what you are doing)
Unable Advanced CSS/JS Aggregation Module (It will compass your js/css, this might cause some problem. Just unable it, use your
original css file) -- This works for me.


Here are some references I used here:


Need help changing domain/url on existing drupal site...
images not showing / displaying after moving to localhost (Wamp
Server)