I haven't used categories for a year. Now when I added a new one and wanted to edit it, I saw E500.
However, I can edit some old categories, but not all.
I was informed about this from the business side. They had some seo agency, but they can't say whether they did anything in the code.
Presta:1.7.6.8
PHP version: 7.2.34
Memory limit: 256M
Maximum execution time: 180
Maximum file size to upload: 64M