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Hi, thank you for using our theme, and sorry for the trouble.

No worry for the errors, as you can see these errors are only warnings, not real errors. This means, the theme works fine without any problem. The only problem is that these messages are visible on your website. These messages are only for developers, while coding a software, plugin or a theme. Those messages should never be visible on a public website, because it’s a huge security issue. A hacker can provoke such messages and hack your website. That’s why it is very important to turn it off.
Please check your hosting panel and search in the settings for “PHP errors and warnings”, and turn it off. This will remove the messages.