docs: add handling callback failures section to entropy best practices

Co-Authored-By: Jayant Krishnamurthy <[email protected]>

Author: devin-ai-integration[bot]

pages/entropy/best-practices.mdx

@@ -33,6 +33,20 @@ function mapRandomNumber(
 
 ```
 
+## Handling Callback Failures
+
+While the default entropy provider is highly reliable, in rare cases a callback might not be received. This typically happens when there's an issue with your contract's callback implementation rather than with the provider itself. The most common causes are:
+
+1. The callback function is using more gas than the allowed limit
+2. The callback function contains logic that throws an error
+
+If you're not receiving a callback, you can manually invoke it to identify the specific issue. This allows you to:
+- See if the transaction fails and why
+- Check the gas usage against the chain's callback gas limit
+- Debug your callback implementation
+
+For detailed instructions on how to manually invoke and debug callbacks, refer to the [Debug Callback Failures](./debug-callback-failures) guide.
+
 Notice that using the modulo operator can distort the distribution of random numbers if it's not a power of 2. This is
 negligible for small and medium ranges, but it can be noticeable for large ranges.
 For example, if you want to generate a random number between 1 and 52, the probability of having value 5 is approximately