Plugin not working properly – compatibility issues with WordPress 5.6?

There seems to be a problem with the plugin. It is not operating properly . It is not adding new videos, it is not previewing the portfolio , it’s not refreshing the videos, it’s not loading them in the mosaic gallery even though it is set to, and it’s not saving any changes to the portfolio.
This ha started happening since WordPress updated to version 5.6. Can you please update the plugin or if it is not a compatibility issue please tell me how to correct these issues