How can i move mismatched footnote text

i have document 900 pages , 2700 footnotes (imported word). after day of applying styles etc. noticed there problem of footnotes. text footnote added @ end of previous footnote text. point forward, footnote text doesn't match reference number. off one.

 

how can fix this? maybe script?

this same problem addressed here: re: how move footnote-text 1 footnote footnotes following given number?
but i'm not familiar scripting, haven't figured out how apply this...

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