how to move my wordpress directory to root domain

Hi! i have 2 queries.

my website link: https://www.turista.webzmp.com/1/

1. I encountered 504 gateway error earlier, after half an hour of refreshing the page and deleting temp files, cookies.. it’s working now. I just want to know if my plugins caused the error so I will remove what has caused it and prevent it from happening again in the future.

2. how do i move my wordpress directory link https://www.turista.webzmp.com/1/ to my subdomain https://www.turista.webzmp.com

thank you in advance for your time and patience ??