Sorry to hear of the problem you are having.
I have tested it on my test site and it’s working fine for me using latest version of Gillion theme.
Could you please update your theme to the following latest version of theme?
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If the issue still occurs for you after updating theme then could you please tell me the exact steps to reproduce the issue?
Install the new version, but this problem still occurs.
Before installing the new version, the page has become unconfigured, now if I try to use the blog template, the page no longer shows.
Every time I try to use the blog template for my Homepage, something wrong happens.
Could you please tell me exactly what wrong happens by sharing the screenshot of it?
Also would you mind if i log in to your site and do some troubleshooting? If this is ok then could you please share me your site log in details privately by adding them in the box having text “Click here to share private content. Only you and forum moderators will bee able see it.”?