Problems when i turn off your plugin

Hi, im not going to renew your services and i have a real issue on my website when i turn off your plugin, im going to explain you what is going on.
When i turn off your plugin ( im talking about Hummingbird, Defender & Wp smush pro) and i clear the cache, my website become really strange, i lose all my slides, photo, text ecc., and if i turn On again your plugin and i clear again the cache my website run well.
I don't know how to move on this issue so im asking your support.
Thank you