here is the error:

The mod Belt Brush caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Belt_Brush::on_built_entity (ID 6)
The mod There is my ghost caused a non-recoverable error.
Please report this error to the mod author.

Error while running event there-is-my-ghost::on_built_entity (ID 6)
there-is-my-ghost/functions.lua:119: attempt to index local 'stack' (a nil value)
stack traceback:
there-is-my-ghost/functions.lua:119: in function 'is_item_usable'
there-is-my-ghost/events.lua:55: in function <there-is-my-ghost/events.lua:49>
stack traceback:
Belt_Brush/control.lua:154: in function 'brush_build'
Belt_Brush/control.lua:198: in function <Belt_Brush/control.lua:194>
stack traceback:
[C]: in function 'raise_event'
Belt_Brush/control.lua:154: in function 'brush_build'
Belt_Brush/control.lua:198: in function <Belt_Brush/control.lua:194>