Error theme after update WP 5.7


we use the theme “Universal WP” on our site
After updating to WP 5.7, the theme seems to stop working. Can you support us here?

Thank you very much.

after downgrade to WP 5.5 it runs again

WP 5.7 just released on 9th March (yesterday). I think your theme is not compatible with WP 5.7. Please contact your purchased theme author and let them know. So that Theme Author may know the WP 5.7 compatible issue and can fix as quickly they can and publish an update version with necessary fix.

How to contact an author to get support or for any technical query: