Error 0xC037001E

Value: -1070137314 | 0xC037001E | 3224829982

What does it mean ?

ERROR_VID_EXCEEDED_KM_CONTEXT_COUNT_LIMIT  
The maximum number of kernel mode clients for the virtualization infrastructure driver has been reached. Restarting the virtual machine may fix the problem. If the problem persists, try restarting the physical computer.
Value: 30 | 0x001E | 0b0000000000011110

Where does it come from ?

FACILITY_USERMODE_VIRTUALIZATION  
User mode virtualization subsystem
Value: 55 | 0x037 | 0b00110111

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