Don't worry the categories are there. They just won't show up until there is a post in the caertogy.The other possibility is that you don't have the categories widget in your sidebar. You can go to Appearance / Widgets and drag the categories widget to your sidebar.
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Recent changes
MattisManzel • 12 hours ago
2403:6200:8837:E575:917:CADE:2511:6B68 • 4 weeks ago
93.210.54.17 • 1 month ago