Issues after updating WordPress to 5.5

My site is not working after updating WordPress to 5.5. On the support page, the only advice that is given is to use a plugin to help mitigate the issue and/or to downgrade to an older version on WordPress. Which is unacceptable to me. They have said, “We are trying to create an update, and it will be released as soon as possible.”. They have not had an update since November 26, 2019. It doesn’t seem like there’s going to be an update anytime soon. I highly recommend going with a different theme that has better support and continues to update its product.