GL Account is currently being used

Anyone know how to fix it.
I only assign Segment 1 as control segment. Segment 2 and after are Dynamic Segment.
When create GL Account, it pop up this error message.

It can work fine before.

Looks like other user has already created and accessing the same record, else, refresh the screen and retry.

check GL account is not created on screen and database level.
I try to create a new segment 1 code and then create GL account. The same error message pop up.