If you're receiving a 413 Error that says "Request entity too large," it's likely because you have a lot of inline code attached to your paragraphs. This happens when you copy/paste text into the content editor from Microsoft Office or other software.
To fix the issue, try replacing the content with plain text.
You can do this either with a "paste + match stylings" shortcut (depends on your operating system) or by pasting it into a text editor (like Notepad on Windows or TextEdit on Mac) and then copy / pasting it into Semplice from there.
Troubleshooting: 413 "Request entity too large" Error
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Invalid characters found