Looks like someone with the same error did a 'rescan' (button in wallet settings) of their wallet and was able to transfer. You may have to end up waiting. Please make sure all your software is up to date. Easy find latest releases on our website:
https://loki.network/getting-started/Thank you for the valuable hint.
I gonna rescan my wallet and let you know the result of this process soon.
Hope that it will be fine for my case.