What does it mean when it says my virtual memory is low?

It means you have insufficient virtual memory. Per Microsoft: If the computer becomes low on memory whenever you run certain programs, one or more of those programs might have a memory leak. To stop a memory leak, you need to close the program. To repair a memory leak, you need to check for updates for the program or contact the publisher of the software. Open Task Manager by right-clicking the taskbar and then clicking Task Manager. Click the Processes tab. To sort programs by memory usage, click Memory (Private Working Set).

as recommended virtual memory should be equal to memoryx1.5.you can set the virtual memory from system propertiesDarshana Jayathilake

It means you have insufficient virtual memory. Per Microsoft: If the computer becomes low on memory whenever you run certain programs, one or more of those programs might have a memory leak. To stop a memory leak, you need to close the program. To repair a memory leak, you need to check for updates for the program or contact the publisher of the software. Open Task Manager by right-clicking the taskbar and then clicking Task Manager. Click the Processes tab. To sort programs by memory usage, click Memory (Private Working Set).

as recommended virtual memory should be equal to memoryx1.5.you can set the virtual memory from system propertiesDarshana Jayathilake