LONG GRID failed limit order

The title says it all.

I have this GRID bot which gave an error on a sell order. Please see attachments.

According to the documentation and my comprehension of how the grid bot works, all the funds used by the bot should already be reserved for it to work and execute.

Hence, this failure should not have happened. What could be the cause?

Feel free to DM/contact me if any information is needed. I kept the bot open in the case it can be of use.

I am looking forward to hearing from you.

Kind regards,

Manuel