migration issue with CF2021:

[albert3162]

After migrate our application from CF2016 to CF2021 we have this error:

class coldfusion.runtime.ApplicationScope cannot be cast to class coldfusion.runtime.Struct (coldfusion.runtime.ApplicationScope and coldfusion.runtime.Struct are in unnamed module of loader coldfusion.bootstrap.BootstrapClassLoader @2fb25f4c)

[w49369461]

I would check the installation logs for 2021, sounds like something didnt work properly. 

[albert3162]

I cannot find the installation logs for 2021 in CF admin

[w49369461]

The log file is located in the root of the Coldfusion folder i.e. C:\Coldfusion2021