i think you should be write directly to the DigitalOcean Support and ask them if that is allowed so you know more and exactly if you can or not.
After contacting the support team got the same reply as expected.
Hello there,
Thanks for reaching out to DigitalOcean!
While we do not specifically disallow mining, we do discourage it as we do not currently offer GPU's and mining via CPU will not yield the same or similar results as would be possible with a GPU. Our Standard Droplets provide shared resources, thus, maxing out the CPU there would potentially result in the Droplet being shut down since that can impact others on our platform using similar Droplet sizes.
Did you try to inquire from Digital Ocean why your account was suspended?
Yes I asked, they replied that my account was suspended due to mining activities.
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Yes, probably the file coin is not on their blacklist yet. But it is also possible that they blacklist it the very next moment when I start mining it. So I think it's good to abandon this idea.
Thanks for your comments, now I come to know that mining on DigitalOcean is a bad idea, they never allow mining no matter what coin you want to mine.
Locking this thread