I’m seeking advice from all the experts here at the beginning

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I use Aspen for methanol-water distillation, and this error occurs during simulation: EQUATION OF STATE MODEL PCSAFT HAS MISSING PARAMETERS: PCSFTM (DATA SET 1) MISSING FOR COMPONENT R METH PCSFTV (DATA SET 1) MISSING FOR COMPONENT R METH PCSFTU (DATA SET 1) MISSING FOR COMPONENT R METH PCSFTM (DATA SET 1) MISSING FOR COMPONENT ANOLWATE PCSFTV (DATA SET 1) MISSING FOR COMPONENT ANOLWATE PCSFTU (DATA SET 1) MISSING FOR COMPONENT ANOLWATE *** SEVERE ERROR WHILE PERFORMING INITIAL ENTHALPY CALCULATIONS FOR STREAM: “FEED” FORTRAN DIVIDE BY ZERO ENCOUNTERED. **** PROPERTY PARAMETER ERRORS WAS FOUND IN THE CALCULATION OF VAPOR-LIQUID K-VALUES USING THE NRTL-RK OPTION FOR KVL! Calculations were stopped due to missing property parameters. But I find that I haven’t lost any parameter settings; I’m not sure where the error lies ? The version I’m using is 11.1