After deleting W3TC and adding the functions.php Session Hack. Form seemed to work. So but now I am facing the same error again on when trying to go back from my step 5 page to 4 or 4 back to 3.
And Yes I have in all the forms the correct [hidden ste “$”] tag…
Only thing I am thinking of, might be that in the first form it stored a wizard form with maximal 3 steps. I later switched to 5…
Do I have to redo all my 5 forms to check?
Any hint on that?
cheers