Large console error

[DoZysGuy]

There is an large console error that appear sometimes after I install ExtraContext and add a placeholdercontext
I really don't know because all is working but this error appear sometimes
Build #20

Here the config of extracontext and the console error
https://gist.github.com/DoZysGuy/f75cb59783fa0bbaf1559c3096a219c6