The age of the account is the issue. Paypal has zero trust in it.
You have a LOT of money for such a new account which is very risky as it can quite easily get limited.
get a new bank account. Add it. Withdraw the funds that way. Anything else you do will increase the risk of you getting the account limited.
And you should know that sending payments from that account to your main account is no cashout solution - its been discussed here to death that doing so will get the accounts linked and limited.
Do things properly or risk losing that account and the money within it.
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AGED SUPER HIGH LIMIT ACCOUNTS: 10,000/$1,000,000 and 25,000/$500,000
REMEMBER, do not try to withdrawal all of your balance in one transaction.
I'd split it up in a few hundred to start and work up the amount you withdrawal each time. If you get an error while trying to withdrawal to bank, let the account sit for 72 hours and try again. Every time you attempt to withdrawal again the 72 hours gets reset.
I had a feeling that I would be seeing a thread from you in the next week about that issue so thought it was worth sharing.
Paypal has been beefing up recently. You cannot send from a new paypal to a new paypal. New is a subjective word, but if you are not doing many transactions then consider it new. Same applies with trying to buy items on ebay via paypal. Even if you have an available balance, and the account is new and the selling account is new, they will not let you complete the purchase(s).
So there is not anything wrong with the paypal, but as Slokor stated above, they are not trusted.