(BUG) {ENTER TITLE HERE} Widow shade closing error

[TeatimeCZ]

I add virtual window shade in hubitat and it is properly connected to apple home.
When I open shade thru apple home work ok but when I want to close shade it stuck on "closing" and in hubitat log is this error message:
java.lang.NullPointerException: Cannot invoke method toInteger() on null object on line 119 (method setPosition)

when "opening" from apple home homebridge app message:
Command Successful for Device | Name: Pergola Shade 2 | Command: [setPosition(100)]
when "closing" from apple home homebridge app message:
Command Successful for Device | Name: Pergola Shade 2 | Command: [setPosition()]

both app and plugin are last version.