How clean what Redis object cache plugin created?

Hi, recently I did a mistake by following what wordpress health center suggested me to do, installing a plugin called “Redis object cache” to improve my website speed.

I did and after that during about 2 weeks, I found that my website is so slow, when I browse in website or in wordpress panel it takes time to load and sometimes receive error 500 timeout.

Then I started to receive warning emails from c-panel that my storage plan is getting exceed, after investigating I found that the error_log file in public_html/ is so large, something around 200MB and even when I deleted that it still grew days later. I downloaded and opened the file found the problem is with “Redis object cache” plugin, removed it and now everything is fast and good enough.

But I still see my storage is used much more than before I installed this plugin, So I want to know how can I delete what ever this plugin has created in my website?
Any way to delete all unnecessary caches?

Thanks