Virtual alloc error with custom symbol generator

[Alberto Tortella]

Hi all, I have a problem with an indicator that generates a custom Symbol.

When I apply the indicator on a chart, in some cases I have the attached error.

Could you explain what kind of errori is it?  I didn’t find discussions or articles about it.

Thank you.

[Oleksandr Medviediev]

This is failure to allocate a large block of memory from the system's virtual memory. 
Need to free up space, close unnecessary applications and processes to increase available memory. 
If problem stays need to upgrade your system's physical memory (RAM).