LiteSpeed is not clearing out the public_html/wp-content - please help

Hi, not sure what I am doing wrong but as the title already says, LiteSpeed is not clearing the public_html/wp-content folder :( My data usage is jumping up to the max within one month and because I am not an IT expert, I always have to ask the web hosting support to clear it for me. How can I get the LiteSpeed to make it work and clear it for me when needed?
Your help would be greatly appreciated.
Thx a lot