You were suspended for high load. However i cannot unsuspend you at this time due to you creating another account. I can unsuspend this account but the new account that you made will be suspended as you can only have one account per the ToS.
The install by default will be located in the root directory of your domain, not /wp or /wordpress. Also did you remember to remove the default index.html that plesk adds to your domains root directory?
Moving your account to another server won't resolve this issue. Wordpress is known to be bloated and slow and we highly recommend using something else as a replacement.