The answer to 'patio installation dying' is that a failing patio installation can be caused by a variety of factors, including poor drainage, improper soil preparation, inadequate base materials, or damage from weather and use over time. Symptoms may include cracks, uneven surfaces, sinking or heaving, and discoloration or deterioration of the paving materials.
In many cases, a failing patio can be repaired or resurfaced, but in more severe cases it may need to be completely replaced. DIY repairs are often possible for minor issues, but for more complex problems or complete replacement, it's generally best to hire a professional landscaping or paving contractor to ensure the job is done correctly and safely.