Error 0x803381AB

Value: -2144108117 | 0x803381AB | 2150859179

What does it mean ?

ERROR_WSMAN_QUOTA_MAX_SHELLUSERS  
The WS-Management service cannot process the request. The maximum number of users executing shell operations has been exceeded. Retry after some time or raise the quota for concurrent shell users.
Value: 33195 | 0x81AB | 0b1000000110101011

Where does it come from ?

FACILITY_WINRM  
Windows Resource Manager
Value: 51 | 0x033 | 0b00110011

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