Error in MEGAN--run.met2mgn

Hello, teachers. I’m a new student learning MEGAN model. I encountered the following error while running the met2mgn, which is really bothering me and has not found a solution for the time being. Therefore, I would like to ask teachers how to solve this mistake. Attached is my error reporting procedure and the run.mgn2mech.v32.csh file
I would appreciate it! thank you

 This program uses the EPA-AREAL/MCNC-EnvPgms/BAMS Models-3      
 I/O Applications Programming Interface, [I/O API] which is      
 built on top of the netCDF I/O library (Copyright 1993, 1996    
 University Corporation for Atmospheric Research/Unidata         
 Program) and the PVM parallel-programming library (from         
 Oak Ridge National Laboratory).  Copyright (C) 1992-2002 MCNC,  
 (C) 1992-2013 Carlie J. Coats, Jr., and (C) 2003-2012 Baron     
 Advanced Meteorological Systems, LLC and released under the     
 GNU LGPL  License, version 2.1.  See URL                        
                                                                 
     https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html     
                                                                 
 for conditions of use.                                          
                                                                 
 ioapi-3.1: $Id:: init3.F 321 2016-02-26 16:00:20Z coats                $
 Version with PARMS3.EXT/PARAMETER::MXVARS3= 2048
 netCDF version 4.4.1.1 of Oct 28 2020 00:07:44 $
  
  
 Missing environment variable EXECUTION_ID
 Value for GDNAM3D:  'china1'
 Value for GDNAM3D:  'china1'

 File "GRIDDESC" opened for input on unit:  99
 /disk1/scl/CMAQ/CMAQ-5.2/data/mcip/20200101/GRIDDESC

 Value for MCIPMET:  Y returning TRUE
 Value for MM5MET:  N returning FALSE
 Value for SATPAR:  N returning FALSE
 Value for MCIPRAD:  Y returning TRUE
 Value for MM5RAD:  N returning FALSE
 Value for SOICRO_YN:  N returning FALSE
 Value for WRFCAMxMET not defined;returning default:   FALSE
 Value for WRFCAMxRAD not defined;returning default:   FALSE
 Value for STDATE:  1820010100
 Value for ENDATE:  1820010123
 Value for EPISODE_SDATE:  20200101
 Value for GDNAM3D:  'china1'
 Value for GDNAM3D:  'china1'
 Value for MCIPRAD:  Y returning TRUE
 Value for SATPAR:  N returning FALSE
 Value for SOICRO_YN:  N returning FALSE
 Value for EPISODE_SDATE:  20200101
 Value for SRAD_TO_PAR not defined; returning default :  0.5
 Value for IOAPI_CHECK_HEADERS not defined;returning default:   FALSE
  
 "METCRO2Dfile1" opened as OLD:READ-ONLY   
 File name "/disk1/scl/CMAQ/CMAQ-5.2/data/mcip/20200101/METCRO2D_china1.nc"
 File type GRDDED3 
 Execution ID "mcip"
 Grid name "METCRO_china1_CR"
 Dimensions: 128 rows, 188 cols, 1 lays, 34 vbles
 NetCDF ID:     65536  opened as READONLY            
 Starting date and time  2020001:000000 (0:00:00   Jan. 1, 2020)
 Timestep                          010000 (1:00:00 hh:mm:ss)
 Maximum current record number       745
  
 "METCRO3Dfile" opened as OLD:READ-ONLY   
 File name "/disk1/scl/CMAQ/CMAQ-5.2/data/mcip/20200101/METCRO3D_china1.nc"
 File type GRDDED3 
 Execution ID "mcip"
 Grid name "METCRO_china1_CR"
 Dimensions: 128 rows, 188 cols, 29 lays, 17 vbles
 NetCDF ID:    131072  opened as READONLY            
 Starting date and time  2020001:000000 (0:00:00   Jan. 1, 2020)
 Timestep                          010000 (1:00:00 hh:mm:ss)
 Maximum current record number       745
  
 "METDOT3Dfile" opened as OLD:READ-ONLY   
 File name "/disk1/scl/CMAQ/CMAQ-5.2/data/mcip/20200101/METDOT3D_china1.nc"
 File type GRDDED3 
 Execution ID "mcip"
 Grid name "METDOT_china1_DO"
 Dimensions: 129 rows, 189 cols, 29 lays, 6 vbles
 NetCDF ID:    196608  opened as READONLY            
 Starting date and time  2020001:000000 (0:00:00   Jan. 1, 2020)
 Timestep                          010000 (1:00:00 hh:mm:ss)
 Maximum current record number       745
 Requested date & time:     20200101:000000
 File starting date & time:  2020001:000000
 File time step:           010000
 
 >>--->> WARNING in subroutine RDTFLAG
 Time step error for file:  METCRO2Dfile1
 M3WARN:  DTBUF 0:00:00   <DATE ERROR>  (*******:000000)
 
 *** ERROR ABORT in subroutine readmcip
 Could not read RC from METCRO2Dfile1    file
 Date and time  0:00:00   <DATE ERROR>    (*******:000000)

run.met2mgn.v32.csh (6.3 KB)

These values for starting and ending date for your run are completely out to lunch – compare with EPISODE_SDATE which seems to be of the form YYYYMMDD…