Looks like you got the same probleme like us: https://forum.getmonero.org/5/support/87097/unable-to-send-xmr-even-though-i-have-xmr-in-my-account
Not enough spendable outputs / balance too low
HI there
I'm using mymonero wallet
I have 9 xmr there
when I tried to send 5 xmr I got this error message
Not enough spendable outputs / balance too low (have: 3.499000000000 need: 5.003000000000)
this happn after the hard fork
thank's