wrong partition reading

Hi I have a VPS + Cpanel WHM with OVH, the server has 160 GB SSD but when i login to whm it says that ther are onlt 7,8 GB available. tried to reinstall 5 times and now i have an license issue that i need to fix but I contacted OVH support and they told me the problem is into the cpanel so I'm here to get any help. Thank you.