If you're experiencing a load issue on your Squarespace site, this is most likely due to a loading compatibility issue on your Squarespace theme. This third party article here may help and if you’re able to turn off Ajax (an older way Squarespace used to support to partially load pages) this may fix the issue.

Should it not resolve please contact us at support@gymcatch.com providing the code block added, link to the page where the site is live and a screenshot of any error message.