VPS errors when running multiple Drupal websites.
I use VPS (2GB RAM 40GB SSD Disk). There are about 80 sites Drupal running on VPS mine. Recently, VPS My frequent loss of connections MySQL, and VPS deactivated. I often have to Power Off and Power On to make it work again. I think VPS is overloaded, because there are so many sites running (around ~ 100 view / day / website). Do I need to upgrade VPS?