Sandbox Business Account

[pain_less]

Hello, I am testing an account on paypal sandbox, it is an business account, but the problem is its not letting me simulate sending money, i've tried goods & services and family & friends with the same error, everytime i try to send money to another sandbox account (i own) i get an error saying i should contact support? but when i check activity page it says it has sent, so this is some strange stuff. since before when i used sandbox it actually showed that it was sent succesfull.

Any answers would be appriciated. And please excuse my english.

Regards.

[pain_less]

This is the error i receive.