After the '_var' text that appeared suddenly at the top of each page, I am seeing many problems on my site.
I upgraded the version to 4.3.2.1 but still the _var and all other issues that appeared with it remain.
I also tried disabling the add on but to no effect, and also removed it completely - still no effect ?!
This is really crippling my site, any idea how it still appears after I have removed ?