**Priority:** high **Preconditions** 1. Admin user is logged in. 2. Admin panel at https://historycode.online/admin-panel is opened. 3. The catalog with a list of streetcodes is fully loaded and visible. **Steps to reproduce** 1. In the “Каталог стріткодів” section, locate and click the “Додати History-код” button. 2. Wait for the creation form or modal to open. **Expected result** Window for creating a new streetcode is opened . **Postconditions** 1. Close window for creating a new streetcode 2. Return to catalog of all streetcodes. **User story:** #1160 **Related bug:**