How to 301 redirect from OLD Domain URL To New Domain URL on Squarespace

Site URL: https://www.elev8women.com/

Hi,

I have a old website www.claudianatasha.com on squarespace with different account detail and I have created my another new website www.elev8women.com with different account details.

Actually I was trying to map my old domain URL https://www.claudianatasha.com/blog-1/2019/7/5/i-stopped-drinking-here-is-what-happened to New domain URL https://www.elev8women.com/blog/i-stopped-drinking-alcohol-here-is-what-happened through URL Mapping but it doesnt seems working.

What would be the real solutions, how should i point some of my old domain URL to New domain URL as 301 redirect so that i doesnt loss my traffics and SEO values. Please guide.

I also am receiving errors.   I don't see any solutions.