FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

This error occurs when the JavaScript heap, which is the memory allocated for the execution of JavaScript code, has run out of memory. This can happen when a program tries to allocate more memory than the available heap size, or when there is a memory leak in the code.

To solve this error, you can try the following:

1. Increase the heap size by running the application with the --max-old-space-size flag, e.g. node --max-old-space-size=4096 app.js, which sets the maximum heap size to 4GB.

2. Optimize the code to reduce memory usage. This can involve using more efficient data structures, freeing up memory when it is no longer needed, or using streams instead of loading large amounts of data into memory.

3. Use a memory profiler tool to identify memory leaks and fix them.

4. If none of these solutions work, consider using a different programming language or framework that is better suited to handling large amounts of data.