Hey @steemchiller!
Wasn't sure how else to contact you.
I received this error using SteemWorld with my main account gadrian:
Assert Exception:available_shares >= op.vesting_shares: Account gadrian does not have enough mana to delegate. required: {"amount":"50031657207","precision":6,"nai":"@@000000037"} available: {"amount":"-73535878093","precision":6,"nai":"@@000000037"}
There's some sort of error, available RC mana amount is set into a negative value while I have a full RC mana.
Sorry, I forgot I was logged in with my Steem Monsters account.
EDIT: I think I figured it out. It must be because I have the power down running to route my SP to my SP holding account. I guess I have to wait until my next power down cycle completes and delegate from the SP holding account.