There are many times I am seeing the error below when accessing to the WHM.
Sorry for the inconvenience! The filesystem mounted at / on this server is running out of disk space. cPanel operations have been temporarily suspended to prevent something bad from happening. Please ask your system admin to remove any files not in use on that partition.
And even after I have cleared the disk space from the server, WHM doesn’t allow me to access to WHM interface.
To get this issue fixed, you may remove the following files and retry again,