MY RAM Consumption has increased suddenly from 6% to 60% but user increased. NO traffic increment

Dear Team

I am using this cyberpanel for lauching of my one site with 16 GB RAM. it was working fine till yesterday. Today its showing 60% of RAM is used. i am surprised. there is no change in traffic even decreased but RAM is used so expontially. Please support me. i think there are some files from this pannel which are creating some issue. please help me out. please support me

See htop what using ram.

could be backups or something running?