How can I fix a Javascript error caused by Tik Tok Sandbox?

[April_Feola]

I recently signed up for tik tok shop and had to use the aftership feed for tik tok shop app to have my products listed.  I noticed that now I have a javascript error caused by tik tok sandbox.   

If you do a google search on tik tok sandbox they show how to change the code etc.... but not sure where I can find this code...been searching pages of my site and havent found it yet.  I also reached out to booster theme - no help, shopify partners- no answer yet and fiverr to get a person to fix it -  no one helping yet.  Would anyone have any insight on how to get rid of this error