plugin totally stuck

I had finally managed to get a good scroll activated email form (mailmunch scroll box)and a couple minutes after setting it, i refreshed the website one last time and everything went haywire.

dreamgrow scroll triggered box was showing up (hadnt worked for weeks and i forgot about it). and huge it slider plugin which had been stuck too, started working as well.

Since they were both unconfigured i tried to deactivate and delete both, managed to delete dreamgrow, but the slider is still stuck.

This is what i have tried since:

* Clear browser cache
* Empty all caches in w3 total cache
* Deactivate w3 total cache
* Deactivate all plugins

All the other changes are taking effect, but no matter what i do the huge it slider is still showing in front page.

Something happened that triggered those 2 faulty plugins and now the cache seems to be very messed up.