Run-time Error 5.... Hangs at Step 2.4c (Could also be Step 1a.9 or 2.3)

Fatal Error

Revit could not complete the external command... Name contains illegal characters

While trying to calculate a job, an error message pops up saying the following

"Error in Calc Engine"

Error in processing data of calculation;

-If this is a grid, uncheck 'Autopeak' and try again or,

-Confirm the node you set as the calculation source node exists in your input or,

- Check for incorrect values in your densities, areas or pressures

System flow demand exceeds the maximum rated flow...

Command Failure for External Command... The symbol is not active

Command Failure for External Command... The symbol is not active

Command Failure for External Command... Category of the element is not supported for element intersection filters

When attempting to activate an Entitlement you get the error;

System.Invalid.OperationException: Failed to generate Fingerprint

at HCADLicense.Form1.activate(String product_key, String user_token)
at HCADLicense.Form1.btnAuthorize_Click(Object sender, EventArgs e)

While using the 'Choose Part Number' button to open HydraHEAD Selector and retrieive its description and part number, you get the errors below;

Runtime Error 713, Application-defined or object-defined error

Sprinkler not properly configured.  Please re-select using 'Choose part'