The answer to 'why is my paver disease' is that your pavers may be experiencing issues like cracking, sinking, or uneven surfaces. This is often caused by improper installation, poor drainage, or soil erosion. Symptoms can include cracked or sunken pavers, weeds growing between pavers, and an uneven walking surface.
To address paver disease, you may need to repair or replace damaged pavers, improve drainage, or stabilize the underlying soil. Smaller issues can sometimes be fixed with DIY methods, but more extensive problems may require the expertise of a professional landscaper or paving contractor.