Tally Import Error - Timestamp mismatch

Hello, please guide on tally migration. getting timestamp mismatch error. no luck even after trying refreshing page. error logs below.

method’: <function run_doc_method at 0x7fef90cd28b0>, ‘event’: None, ‘job_name’: ‘frappe.utils.background_jobs.run_doc_method’, ‘kwargs’: {‘doctype’: ‘Tally Migration’, ‘name’: ‘Tally Migration on 16-07-2021 17:09:20’, ‘doc_method’: ‘_process_master_data’}, ‘user’: ‘Administrator’, ‘is_async’: True, ‘retry’: 0, ‘log’: <function log at 0x7fef9035d3a0>, ‘method_name’: ‘frappe.utils.background_jobs.run_doc_method’}
Traceback (most recent call last):
File “/home/erpuser/frappe-bench/apps/frappe/frappe/utils/background_jobs.py”, line 102, in execute_job
method(**kwargs)
File “/home/erpuser/frappe-bench/apps/frappe/frappe/utils/background_jobs.py”, line 80, in run_doc_method
getattr(frappe.get_doc(doctype, name), doc_method)(**kwargs)
File “/home/erpuser/frappe-bench/apps/erpnext/erpnext/erpnext_integrations/doctype/tally_migration/tally_migration.py”, line 274, in _process_master_data
self.set_status()
File “/home/erpuser/frappe-bench/apps/erpnext/erpnext/erpnext_integrations/doctype/tally_migration/tally_migration.py”, line 633, in set_status
self.save()
File “/home/erpuser/frappe-bench/apps/frappe/frappe/model/document.py”, line 273, in save
return self._save(*args, **kwargs)
File “/home/erpuser/frappe-bench/apps/frappe/frappe/model/document.py”, line 303, in save
self.check_if_latest()
File “/home/erpuser/frappe-bench/apps/frappe/frappe/model/document.py”, line 663, in check_if_latest
frappe.msgprint(
(“Error: Document has been modified after you have opened it”)
File “/home/erpuser/frappe-bench/apps/frappe/frappe/init.py”, line 359, in msgprint
_raise_exception()
File “/home/erpuser/frappe-bench/apps/frappe/frappe/init.py”, line 319, in _raise_exception
raise raise_exception(msg)
frappe.exceptions.TimestampMismatchError: Error: Document has been modified after you have opened it (2021-07-16 17:09:25.617017, 2021-07-16 17:09:26.567236). Please refresh to get the latest document.