I see blank screen when I open Studio or any other tabs in Administration

Question

Except Repair and Rebuild , I can see only blank screen when I open Studio , module builder or any other tabs on administration. 
 Please assist me here . It's quite urgent. 
 
 > Administration

>Studio (This is when I opened Studio)

Gautam Sharma · Accepted Answer

Hi Gautam, 
 1. Did you tried deploying any customizations on this instance today. 
 2. Please check the permissions for the Sugar Folder and make sure everything is properly set. 
 3. Try accessing the instance in various browsers and check if the issue still happens. 
 4. Can you also please check if you are getting any errors in the console, sugar logs, and error logs. 
 5. Please check the logs first thoroughly, which helps you to debug the issue. 
 Attach the logs if you see any errors. Don't worry let us narrow down and fix the issue.

Gautam Sharma · Answer

Hi Gautam, 
 1. As a first step, remove the files added for this customization. 
 2. Move the cache folder in the sugar root directory to cache_bkp. create a new cache folder. 
 3. Give proper ownership and permissions to the Sugar root directory. 
 4. Perform the Repair and Rebuild to the instance. 
 5. Try accessing the instance in the incognito window and check.

Gautam Sharma · Answer

It looks like you have a permissions issue as Ramya Katram said. Your files and directories should be owned by apache, not root, and I would recommend against a 777 setting as it would grant way too much access to all users. 
 
 If you are an on-site customer you can use each of the following from the root of SugarCRM application to set ownership and permissions, then do a QRR: 
 Permissions: 
 --------------------------------- 
 sudo chown -R apache:apache * 
 sudo find . -type d -exec chmod 775 {} \; 
 sudo find . -type f -exec chmod 664 {} \; 
 
 These in turn set your ownership and group to apache on all directories and files. 
 Sets permissions of 775 on all direcotries, and 664 on all files.