To prevent your document from not allowing you to insert or delete page breaks around a specific paragraph, try these steps:

1. Check if the paragraph is part of a continuous section
2. Check if the paragraph contains any special formatting, such as a footnote or header/footer
3. Check if the paragraph is part of a table or other structure
4. If any of these checks result in a positive result, you will need to remove the special formatting before you can add or remove page breaks.