I can confirm the macro is not working. I can replicate the issue with the same error. I don't have much time this week to look into this, but will try. In the meantime, if anyone else finds the issue and fixes it; please post it here.
hmm, i tried re-recording it and everything looks spot on between yours and my new recording.
But I tried running the newly recorded version with 100% hard-coded details (no vars) and it seemed to go through fine.
will add vars back in 1 by 1 and see what happens
EDIT:
ha! figured it out!
its not the code or the website.
the imacros guys have put a limit on how many variables you can have in the free browser add-on version, looks like the limit is 3.
so edit the code to only use var1,2 & 3, 1 & 2 are commented out anyway.
So replace VAR3 with VAR1 everywhere in the code, VAR4 with VAR2 and 5 with 3 respectively, then it will work 100% again
saving the macro to a file is also not permitted anymore in the free version, nor is reading data in externally from a file.
As I was trying to modify some code to search Singapore airlines for a whole year automatically in J on points (need to buy the $99 personal version it seems)