I'm having the same issue and did as you instructed and got this:
jenna@MacBookPro ~ % find ~ -type d -name "*The Sims 4*" 2>/dev/null
/Users/jenna/Applications/The Sims 4 Packs
/Users/jenna/Applications/The Sims 4.app
/Users/jenna/Documents/Electronic Arts/The Sims 4
jenna@MacBookPro ~ %
The Terminal instructions were specific to the OP as they are saying they don't have a Sims 4 folder. You have one in Documents > Electronic Arts. You should try a clean folder to try and resolve your problem [INSTRUCTIONS] How to troubleshoot and test a broken game | EA Forums - 11864548
