Topographic Phase Removal Error

hi everyone
i am having the same problem.
i am running steps of gpt via python with the goal of having a script to do interferogram on mass - long story - another time…

after interferogram and deburst steps seems to work fine…
i tried running this within snap (8.0.4), both graph and menu (just in case) and i get the above error.

i understand im not alone here but how do i fix this?

many thanks in advance
tamir