to reproduce:
In YaTQA, go to Users → right-click on a channel → Create Channel → enter a name and select to copy properties → ok
error:
The query could not be completed.
Command: channelcreate
Error message: invalid parameter
Error code: 1538
Despite this being a TeamSpeak error, there is a chance that this might be caused by a bug in YaTQA.
When I try to copy permissions or channel group memberships it works fine.