This could be caused by one of the following problems:

Problem: Firelighters have lost potency over time.
Solution: Re-start the fire with fresh firelighters. Use tongs and exercise caution, as some of the briquettes may have gotten very hot. Once opened, firelighters should be stored in an airtight container.

Problem: Some brands of firelighters are not powerful enough to ignite Heat Beads® BBQ Fuel.
Solution: Use Heat Beads® Firelighters with Heat Beads® BBQ Fuel.

Problem: The briquettes are damp.
Solution: Remove the briquettes with tongs, and replace with dry briquettes.

My food is burnt on the outside (when using the indirect cooking method).
This occurs when food is being cooked too close to, or directly over, the briquettes.

In future, do not place food directly over, or too close to, the briquettes when cooking for a period of time. Consider using foil to protect the edges of your food.