A CRITICAL ERROR OCCURRED AFTER THE UPDATE (15/05/2021)

Good afternoon. After you wrote that you fixed it, I checked, at first glance it seemed to me that there really was no problem. But there were hidden problems that did not give themselves away, error messages did not come, but for some reason the filter in the admin panel stopped working, watch the video at the link
https://drive.google.com/file/d/1-DJOm-vacRsKQhFFcMZfC8RkNa3tNpnS/view?usp=sharing

I could not understand what caused this, until the next day I tried to go to the admin panel of the site and then an error came out, see the screenshot
https://yadi.sk/i/CfR92Zt2ZtPAxw

After I now disabled your plugin, the error disappeared, and the filter in the admin panel worked, and the plugin for calculating the price per square meter also worked, which also did not work from the error