trying to load javaclass insight query language error

[Jose Ramos Roman]

System Env Jira Core

Jira Core 8.13.5

Insight Version 8.9.3

Unable to load the java class 

Class iqlFacadeClass = ComponentAccessor.getPluginAccessor().getClassLoader().findClass("com.riadalabs.jira.plugins.insight.chnnel.external.api.facade.IQLFacade")

ComponentAccessor.getPluginAccessor().getClassLoader().findClass("com.riadalabs.jira.plugins.insight.chnnel.external.api.facade.ObjectFacade")

ComponentAccessor.getPluginAccessor().getClassLoader().findClass("com.riadalabs.jira.plugins.insight.chnnel.external.api.facade.ObjectTypeFacade")

use to work in Insight 8.6.6

error is Static Type Checking - Cannot Find matching method

any ideas