[ColdBox 4.30] ValidationManager@cbvalidation Injector.InstanceNotFoundException

[cubortea]

Hi Guys, I have a strange problem in my application lately. I get this error:

Art
Injector.InstanceNotFoundException
Nachricht
Requested instance not found: 'ValidationManager@cbvalidation'
Detail
The instance could not be located in any declared scan location(s) (go.models) or full path location
TagContext
/opt/myapp/at1/coldbox/system/ioc/Injector.cfc (238)
/opt/myapp/at1/hrm/modules/cbvalidation/models/Mixins.cfm (27)
/opt/myapp/at1/hrm/modules/cbvalidation/models/Mixins.cfm (20)
/opt/myapp/at1/hrm/handlers/intern/admin.cfc (460)
/opt/myapp/at1/hrm/handlers/intern/employee/employee2.cfc (31)
/opt/myapp/at1/coldbox/system/EventHandler.cfc (85)
/opt/myapp/at1/coldbox/system/web/Controller.cfc (795)
/opt/myapp/at1/coldbox/system/web/Controller.cfc (633)
/opt/myapp/at1/coldbox/system/web/Controller.cfc (425)
/opt/myapp/at1/coldbox/system/Bootstrap.cfc (200)
/opt/myapp/at1/coldbox/system/Bootstrap.cfc (360)
/opt/myapp/at1/hrm/Application.cfc (105)

in my code at1/hrm/handlers/intern/admin.cfc (460) is:

var validation = ValidateModel(target=rc, constraints=newItem.constraints);

But if I restart the coldfusion, this error is gone, and will happen again in the future. Anyone know about this case?

Thanks

Andri