Error Code 2147024882 Not enough storage is avaible in this operation

I was playing in fiesta until someone used demon cry and I got this error

Your client reached max RAM usage. Just start the client again.

Do you know how to allow more RAM?

I have 4 but the computer says im only allowed to use 3.5gb of ram :/

You probably just lagged out because he was using Devil Cry, some skills intentionally do that. Even I dc sometimes when people spam skills, or when I spam a specific skill multiple times. Just reload the client all over again and you should be fine, also don't double post. At best, if you need to double post, just re edit your original post and underneath the main message just type "EDIT:" without the quotes.

4 Gbs is installed. 3.5GBs is available. That part of the RAM missing is for the components that makes Window run. Just start the client again. The more things running, the faster the RAM is used up.