I tried some transactions and failed, since then my funds are blocked.

This says "warning" at metamask, 22 may

http://etherscan.io/tx/0xff66ce42e1757c5e4896188f464c15c08c6e6ebe09ba451eced86c52600b6a04

this is a success 22 may

https://etherscan.io/tx/0x0c2c88e0497dc5fb62b79ae785c46b008600fa1b1b8e784bba9c65757c5b026c

another warning 24 may

https://etherscan.io/tx/0xc81e0d3807cbfe6cfad7ea3a71696ddc1c1e1f643a93a41b6579800f056262ba

There is one "rejected" but when I click on it on metamask nothing happens, it doesn't send me to etherscan.

this is the last one, I tried today:

https://etherscan.io/tx/0x213113e82dfbd0979b04bff0d9a96b0a274054be5aa4402f25b3dfe0cf3c914f

it begins with the "taking too long..."

What can I do to unlock my funds?

Has the ponzi scheme exploded?