OnePress Elevator is killing classic editor image resizing, table properties etc

I purchased this plugin and it was really handy but after recent changes in WordPress, it stopped working properly. I lost around 2 days to figure our WordPress 5.7 upgrade problems. When I was working on classic editor, image resizing, table resizing, table/cell/row properties, crayon syntax highlighting, and many more were not working. I disabled and enabled all plugins and even my theme on stage environment and finally, I found that One press elevator was the root cause of these problems. I wanted to inform you if you face a similar problem. In this way, maybe you will not lose time like me. I hope these problems will be fixed.

Thanks.
-Onur