Error when deleting ''Main Menu''

I recently made a localhost to start remixing our website and buy the Architecture template.

Everything was right until I delete the MAIN MENU which is on right. After this step it was impossible to see my progress and also to simply see the site.

Please help me.

How you mean can't see the site? What you see when you open home page? It's a bit difficult to help when I don't see website live, but you'd probably need to re-create the menu you deleted.

Here is the error message that browser shows.

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How can i re-create the main menu because i already try but without success.

Thank you.

Please reinstall it using HotStart files. If you need to fix this copy, please upload it somewhere and give me link so I can check this.

Where can I upload it? When i change template it doesn't work either.

What's the code or the procedure to only re-create the template? I try with hotstart but I don't know how

Your problem is not with template, but with Joomla. However, I can't tell you exactly how to fix it, as your website is not available online.

Please read documentation of our template, and install Hot Start all over again.