Hey.
Sorry for delay.

IslaCoin-Qt v1.1.0.0 released. Mandatory update.

Windows-Qt
GitHub

1) Go to your data folder: C:\Users\[USERNAME]\AppData\Roaming\IslaCoin
2) Backup wallet.dat
3) Delete IslaCoin folder.
4) Run new wallet.

Nodes:
46.101.156.191
104.236.239.165

Important: Check block number in the wallet to which you are sending. Fork at block 115373