Strange runtime error!

I have faced a runtime error when I tried to load my application’s home screen.
It shows this runtime error in apk on KitKat:-

> java.lang.stringbuffer.append

And home screen is not initializing on Android 7.0 while it works perfectly in companion.
Here are the blocks:-
https://kodular-community-uploads.s3.dualstack.eu-west-1.amazonaws.com/original/3X/b/1/b18ca961b63bf0495f4853e1d5df7a0b3ce74d90.png

adjust your image cannot see the image

I am doing that.
Not working.
Is it bug?

:smiling_imp::smiling_imp:

https://kodular-community-uploads.s3.dualstack.eu-west-1.amazonaws.com/original/3X/b/1/b18ca961b63bf0495f4853e1d5df7a0b3ce74d90.png