Theme editor error, unable to edit

[samuelj]

Hello,
Theme editor is not editable on my wordpress site https://calculadoradediasfechasanos.com, and returning error (attached image), i also try disabling themes and plugins but it didn’t worked. Can you please take a moment to help me to fix it.
Thank you

[Admin]

To start, please pick the appropriate category next time. If you’re having trouble managing your website, that’s a support question, so please post it in the Hosting Support category, not the Informal category.

I’m not completely sure, but I think the issue is that WordPress is unable to verify whether the changes don’t crash your website because of this system:

Ensuring only web browsers can access your website

InfinityFree is a website hosting service. That means that the hosting accounts we provided are intended for hosting websites. Websites contain pages that are accessed through web browsers. InfinityFree is not intended to be used for file sharing, API hosting, database hosting or background tasks/tools. To help enforce this, free hosting enforces a security system that makes sure that anyone trying to access your website is using a normal web browser. This is done by checking whether the web br…

Unfortunately, there isn’t really a “fix” for this. A web search points me to a few possible solutions:

• Accept that you can’t use the built-in editor of WordPress, and edit your file using our web based file manager instead, or an FTP client of your choice.
• Modify the WordPress core code to remove this check. However, be aware that this may be removed when WordPress is updated, and you risk breaking your site completely if you do it wrong.
• Use a plugin that lets you edit WordPress files (but doesn’t do this check) instead.