Missing categories

Hello, currently i am running your plugin on my website (solveo.co), but i’ve run into a problem since i have updated it. The problems is, when the plugin is active i am missing all of my categories in Posts > Categoriesl but i can see them if i try to write/update a post (Although if i assign any category, the category of the post still remains Uncategorized). If i deactivate the plugin (which i don’t want) i don’t have this problem.

Thank you.

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