We have configured the Digital Ocean slave machines in the Jenkins CI and it was working properly. But in the last 2(From July 6th, 2022) days all our agents couldn't created in the Jenkins server. 

Checked with Agent machine configs section in jenkins. here we found the cause in the Agent machine's 'Size' cloumn. It looks like invalid values, and it throws the error like below.

And the Agent machine's Size value is:

Before:

Now suddenly it shows like below.

Could not able to understand why this sudden value changed in the Size column which is from Digital Ocean plugin. Can anyone please suggest how to resolve this?