Social Media Link includes @; how to correctly type it out

Hello Support
I remember adding our TikTok link as a Social Media Link to our site, 4282.toastmastersclubs.org/ , and it worked correctly at first.

The Social Media link that we want to add = https://www.tiktok.com/@opportunityspeakers

But in the admin console's Social Links tab now I cannot correctly type out the link --
Both www.tiktok.com/%40opportunityspeakers and
https://www.tiktok.com/@opportunityspeakers
go to www.tiktok.com/404?fromUrl=%2F%2540opportunityspeakers

I cannot find the answer on support.toastmastersclubs.org/doc/item/social-media-links .

Thank you for your time.
Harry Holland
Opportunity Speakers Toastmasters Club #4282, District 4
4282.toastmastersclubs.org

One of the oddities of HTML sometimes for special characters you have to use the ascii code @ = " "

Thanks very much Brian. That works. A site search found that you have addressed similar issues before -- perhaps because French language characters are "special" from the perspective of English.

I submitted a request in "Improvement Suggestions" for this site to include a note or reference for the "special characters" issue, rather than only in scattered topics and their responses, so as hopefully to make life easier for others who also have to deal with the issue.

Thank you for your time.
Harry Holland
Opportunity Speakers Toastmasters Club #4282, District 4
4282.toastmastersclubs.org