I try sell 0.057 ZEC, and has that error.
But on my balance i have 0.2 ZEC.
Is anybody have same problems and how solve them?
You probably have open orders using those coins.
Directly at the beginning of Kraken I told them to add available balance, besides alot of other improvements.
But they never added any of those improvements and never fixed bugs.
All they did was adding new coins...