If you are on Windows, go to "Tools". If you are on Mac go to "preferences". Either way, from there go to "Options". There is an option to allow a short seed.
Done. Nothing has changed, same error message "seed too long". Option is to allow a short seed, not a long one.
damn thats a bad error. you could try deleting number 9 in your seed and see if you can get it down to 81 characters. as far as I understand IOTA uses 9 to fill up short seeds. so maybe deleting the 9 works too? it wont work i assume, but just try . maybe it works.