I am using WDmarvel for this process and getting an error.

12/12/2020 7:37:29 AM: Drive: WDC WD20PURZ-85GU6Y0, family: Diablo 3S (Royl), FW: 15.AFC, SN: WDC-ROM SN# XYZ----, LBA 1 - 0Gb
12/12/2020 7:37:30 AM: Media manufacturer code - J
12/12/2020 7:37:30 AM: Head manufacturer code - F
12/12/2020 7:37:31 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:37:31 AM: Error determining the number of Capacity Groups, state - VSC_ERR_UNSUP_ACTION_CODE
12/12/2020 7:38:01 AM: Test Parameters TPI Calibration not found
12/12/2020 7:38:01 AM: Test Parameters VDT HeadQual not found
12/12/2020 7:38:09 AM: Test Parameters Target Search Calibration not found
12/12/2020 7:40:24 AM: Media manufacturer code - J
12/12/2020 7:40:24 AM: Head manufacturer code - F
12/12/2020 7:40:24 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:40:47 AM: Drive: WDC WD20PURZ-85GU6Y0, family: Diablo 3S (Royl), FW: 15.AFC, SN: WDC-ROM SN# XYZ----, LBA 1 - 0Gb
12/12/2020 7:40:56 AM: Media manufacturer code - J
12/12/2020 7:40:56 AM: Head manufacturer code - F
12/12/2020 7:40:57 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:44:46 AM: Drive: WDC WD20PURZ-85GU6Y0, family: Diablo 3S (Royl), FW: 15.AFC, SN: WDC-ROM SN# XYZ----, LBA 1 - 0Gb
12/12/2020 7:44:47 AM: Media manufacturer code - J
12/12/2020 7:44:47 AM: Head manufacturer code - F
12/12/2020 7:44:48 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:44:48 AM: Error determining the number of Capacity Groups, state - VSC_ERR_UNSUP_ACTION_CODE
12/12/2020 7:45:18 AM: Test Parameters TPI Calibration not found
12/12/2020 7:45:18 AM: Test Parameters VDT HeadQual not found
12/12/2020 7:45:25 AM: Test Parameters Target Search Calibration not found
12/12/2020 7:46:07 AM: Media manufacturer code - J
12/12/2020 7:46:07 AM: Head manufacturer code - F
12/12/2020 7:46:08 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:46:27 AM: Drive: WDC WD20PURZ-85GU6Y0, family: Diablo 3S (Royl), FW: 15.AFC, SN: WDC-ROM SN# XYZ----, LBA 1 - 0Gb
12/12/2020 7:47:05 AM: Êîä ïðîèçâîäèòåëÿ ïëàñòèí - J
12/12/2020 7:47:05 AM: Êîä ïðîèçâîäèòåëÿ ãîëîâîê - F
12/12/2020 7:47:26 AM: Media manufacturer code - J
12/12/2020 7:47:26 AM: Head manufacturer code - F
12/12/2020 7:47:27 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:47:45 AM: Drive: WDC WD20PURZ-85GU6Y0, family: Diablo 3S (Royl), FW: 15.AFC, SN: WDC-ROM SN# XYZ----, LBA 1 - 0Gb
12/12/2020 7:47:46 AM: Media manufacturer code - J
12/12/2020 7:47:46 AM: Head manufacturer code - F
12/12/2020 7:47:47 AM: Error determining the number of options for DCM, state - Module not in Dir???
12/12/2020 7:47:47 AM: Error determining the number of Capacity Groups, state - VSC_ERR_UNSUP_ACTION_CODE
12/12/2020 7:48:16 AM: Test Parameters TPI Calibration not found
12/12/2020 7:48:16 AM: Test Parameters VDT HeadQual not found
12/12/2020 7:48:22 AM: Test Parameters Target Search Calibration not found
12/12/2020 7:48:54 AM: Region map successfully changed
12/12/2020 7:48:55 AM: Region map successfully changed
12/12/2020 7:49:17 AM: Overlays successfully loaded to RAM
12/12/2020 7:49:17 AM: Region map successfully restored
12/12/2020 7:49:18 AM: Region map successfully restored
12/12/2020 7:49:20 AM: ROM successfully read
12/12/2020 7:49:24 AM: ROM successfully erased
12/12/2020 7:49:26 AM: ROM successfully written
12/12/2020 7:49:41 AM: FW restarted (Reset immediate)
12/12/2020 7:49:46 AM: Head map successfully changed
12/12/2020 7:49:51 AM: FW restarted (Reset immediate)
12/12/2020 7:49:57 AM: Calibrator test MiniCalLin successfully launched
12/12/2020 7:54:55 AM: Calibrator test MiniCalLin completed successfully
12/12/2020 7:54:55 AM: Elapsed time 00:04:58
12/12/2020 7:55:01 AM: FW restarted (Reset immediate)
12/12/2020 7:55:06 AM: Calibrator test Mini ARCO successfully launched
12/12/2020 8:34:58 AM: Calibrator test Mini ARCO completed successfully
12/12/2020 8:34:58 AM: Elapsed time 00:39:52
12/12/2020 8:35:04 AM: FW restarted (Reset immediate)
12/12/2020 8:35:08 AM: Calibrator test Mini Write WRRO successfully launched
12/12/2020 8:39:11 AM: Calibrator test Mini Write WRRO completed successfully
12/12/2020 8:39:11 AM: Elapsed time 00:04:03
12/12/2020 8:39:17 AM: FW restarted (Reset immediate)
12/12/2020 8:39:21 AM: Calibrator test MiniIBI successfully launched
12/12/2020 8:42:33 AM: Calibrator test MiniIBI completed successfully
12/12/2020 8:42:34 AM: Elapsed time 00:03:12
12/12/2020 8:42:39 AM: FW restarted (Reset immediate)
12/12/2020 8:42:44 AM: Writing modules ...
12/12/2020 8:44:08 AM: Models list successfully changed.
12/12/2020 8:50:21 AM: Region map successfully changed
12/12/2020 8:50:22 AM: Region map successfully changed
12/12/2020 8:50:31 AM: Overlays successfully loaded to RAM
12/12/2020 8:50:31 AM: Region map successfully restored
12/12/2020 8:50:32 AM: Region map successfully restored
12/12/2020 8:50:37 AM: Successfully wrote 421 modules
12/12/2020 8:50:38 AM: Region map successfully changed
12/12/2020 8:50:39 AM: Region map successfully changed
12/12/2020 8:50:48 AM: Overlays successfully loaded to RAM
12/12/2020 8:50:48 AM: Region map successfully restored
12/12/2020 8:50:49 AM: Region map successfully restored
12/12/2020 8:50:50 AM: FW restarted (Reset immediate)
12/12/2020 8:51:23 AM: Set DCM success
12/12/2020 8:51:32 AM: FW restarted (Reset immediate)
12/12/2020 8:51:39 AM: UCCM Config is successfully set
12/12/2020 8:51:42 AM: RRO initialization successful
12/12/2020 8:51:45 AM: MRR initialization successful
12/12/2020 8:52:02 AM: Set DCM success
12/12/2020 8:52:08 AM: FW restarted (Reset immediate)
12/12/2020 8:55:19 AM: Error reading module IDE0, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 8:55:36 AM: Error reading module IDE8, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 8:55:38 AM: Successfully read 416 modules
12/12/2020 8:55:40 AM: ROM successfully read
12/12/2020 8:55:43 AM: Successfully read 7 modules
12/12/2020 8:55:45 AM: New format type drive detected
12/12/2020 8:56:18 AM: Restore point created with errors
12/12/2020 8:56:21 AM: Calibrator test Servo Process Util successfully launched
12/12/2020 8:56:25 AM: Calibrator test Servo Process Util completed successfully
12/12/2020 8:56:25 AM: Elapsed time 00:00:03
12/12/2020 8:56:31 AM: FW restarted (Reset immediate)
12/12/2020 8:59:37 AM: Error reading module IDE0, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 8:59:53 AM: Error reading module IDE8, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 8:59:55 AM: Successfully read 416 modules
12/12/2020 8:59:57 AM: ROM successfully read
12/12/2020 9:00:00 AM: Successfully read 7 modules
12/12/2020 9:00:01 AM: New format type drive detected
12/12/2020 9:00:35 AM: Restore point created with errors
12/12/2020 9:00:38 AM: Calibrator test Servo Calibration successfully launched
12/12/2020 9:14:31 AM: Calibrator test Servo Calibration completed successfully
12/12/2020 9:14:31 AM: Elapsed time 00:13:52
12/12/2020 9:14:38 AM: FW restarted (Reset immediate)
12/12/2020 9:17:46 AM: Error reading module IDE0, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 9:18:00 AM: Error reading module IDE8, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 9:18:02 AM: Successfully read 416 modules
12/12/2020 9:18:04 AM: ROM successfully read
12/12/2020 9:18:07 AM: Successfully read 7 modules
12/12/2020 9:18:08 AM: New format type drive detected
12/12/2020 9:18:41 AM: Restore point created with errors
12/12/2020 9:18:45 AM: Calibrator test TouchDown Calibration successfully launched
12/12/2020 10:34:53 AM: Calibrator test TouchDown Calibration completed successfully
12/12/2020 10:34:53 AM: Elapsed time 01:16:07
12/12/2020 10:34:59 AM: FW restarted (Reset immediate)
12/12/2020 10:38:07 AM: Error reading module IDE0, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 10:38:24 AM: Error reading module IDE8, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 10:38:32 AM: Successfully read 421 modules
12/12/2020 10:38:34 AM: ROM successfully read
12/12/2020 10:38:37 AM: Successfully read 7 modules
12/12/2020 10:38:39 AM: New format type drive detected
12/12/2020 10:39:10 AM: Restore point created with errors
12/12/2020 10:39:14 AM: Calibrator test RWGap Calibration successfully launched
12/12/2020 10:49:49 AM: Calibrator test RWGap Calibration completed successfully
12/12/2020 10:49:49 AM: Elapsed time 00:10:34
12/12/2020 10:49:56 AM: FW restarted (Reset immediate)
12/12/2020 10:53:04 AM: Error reading module IDE0, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 10:53:20 AM: Error reading module IDE8, state - FM_ERR_HEADER_II_SIGNATURE_INVALID
12/12/2020 10:53:30 AM: Successfully read 427 modules
12/12/2020 10:53:32 AM: ROM successfully read
12/12/2020 10:53:34 AM: Successfully read 7 modules
12/12/2020 10:53:36 AM: New format type drive detected
12/12/2020 10:54:09 AM: Restore point created with errors
12/12/2020 10:54:13 AM: Error setting Target Capacity, state - VSC_ERR_UNSUP_ACTION_CODE
12/12/2020 10:54:29 AM: Target Capacity was set to 1
12/12/2020 10:54:32 AM: Calibrator test Zone TPI calc and HeadQual successfully launched
12/12/2020 2:30:09 PM: Test Zone TPI calc and HeadQual failed with error: ARCO Error - ARCO Data placement invalid
12/12/2020 2:30:10 PM: Elapsed time 03:35:37

Anyone have an idea why this stopped here and what to try?

ARCO is not an easy task. You must learn much before trying to run an ARCO process. Don't ignore the error messages as well.

I ran ARCO on the drive as suggested by Vlad. I posted on that forum too, but have not received an answer.