It seems like this 3rd party plugin UP - Universal Plugin caused the styling issue, you can check my attached screenshot below.

Can you report this issue to the plugin developer and see how it goes?

If you disable this plugin then it will load fine.

Thank you, I just deactivated the up universal plugin, it became correct again (see photo). I will report it to the plugin developer.

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Merci, je viens de désactiver le plugin up universal, c'est redevenu correcte (voir photo). Je vais le signaler au développeur du plugin.

You are most welcome. Glad to hear that your issue has been resolved now.

Just for your information, I have locked and marked this thread as resolved to avoid confusion in the future. Please start a new thread if you have any other issues in the future so it will be easier for us to manage your inquiries.

Thanks for understanding.