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
2401:4900:1F2A:8FFF:0:0:19A:5EFE • 1 month ago
Harsharose • 1 month ago
Harsharose • 1 month ago
2607:FB90:EAC3:85A9:897A:CA2C:7CC3:E11B • 2 months ago