Bench update error - Backing up sites

Cannot update bench

lok@abc-comp:~/frappe-bench$ bench update
INFO:bench.utils:Updating bench
INFO:bench.utils:git pull
Already up to date.
INFO:bench.utils:Bench Updated!
INFO:bench.utils:./env/bin/pip install Pillow
Requirement already satisfied: Pillow in ./env/lib/python3.6/site-packages (6.2.2)
Backing up sites…
Traceback (most recent call last):
File “/usr/lib/python3.6/runpy.py”, line 193, in _run_module_as_main
main”, mod_spec)
File “/usr/lib/python3.6/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 97, in
main()
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 18, in main
click.Group(commands=commands)(prog_name=‘bench’)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 764, in call
return self.main(*args, **kwargs)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 717, in main
rv = self.invoke(ctx)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 555, in invoke
return callback(*args, **kwargs)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/click/decorators.py”, line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File “/home/lok/frappe-bench/apps/frappe/frappe/commands/init.py”, line 25, in _func
ret = f(frappe.dict(ctx.obj), *args, **kwargs)
File “/home/lok/frappe-bench/apps/frappe/frappe/commands/site.py”, line 317, in backup
odb = scheduled_backup(ignore_files=not with_files, backup_path_db=backup_path_db, backup_path_files=backup_path_files, backup_path_private_files=backup_path_private_files, force=True)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/backups.py”, line 165, in scheduled_backup
odb = new_backup(older_than, ignore_files, backup_path_db=backup_path_db, backup_path_files=backup_path_files, force=force)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/backups.py”, line 175, in new_backup
odb.get_backup(older_than, ignore_files, force=force)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/backups.py”, line 48, in get_backup
self.set_backup_file_name()
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/backups.py”, line 61, in set_backup_file_name
todays_date = now_datetime().strftime(’%Y%m%d
%H%M%S’)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/data.py”, line 127, in now_datetime
dt = convert_utc_to_user_timezone(datetime.datetime.utcnow())
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/data.py”, line 150, in convert_utc_to_user_timezone
return utcnow.astimezone(timezone(get_time_zone()))
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/data.py”, line 144, in get_time_zone
return frappe.cache().get_value(“time_zone”, _get_time_zone)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/redis_wrapper.py”, line 79, in get_value
val = generator()
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/data.py”, line 138, in _get_time_zone
return frappe.db.get_system_setting(‘time_zone’) or ‘Asia/Kolkata’ # Default to India ?!
File “/home/lok/frappe-bench/apps/frappe/frappe/database/database.py”, line 895, in get_system_setting
return frappe.cache().get_value(“system_settings”, _load_system_settings).get(key)
File “/home/lok/frappe-bench/apps/frappe/frappe/utils/redis_wrapper.py”, line 79, in get_value
val = generator()
File “/home/lok/frappe-bench/apps/frappe/frappe/database/database.py”, line 894, in _load_system_settings
return self.get_singles_dict(“System Settings”)
File “/home/lok/frappe-bench/apps/frappe/frappe/database/database.py”, line 519, in get_singles_dict
“”", doctype)
File “/home/lok/frappe-bench/apps/frappe/frappe/database/database.py”, line 122, in sql
self.connect()
File “/home/lok/frappe-bench/apps/frappe/frappe/database/database.py”, line 75, in connect
self._conn = self.get_connection()
File “/home/lok/frappe-bench/apps/frappe/frappe/database/mariadb/database.py”, line 90, in get_connection
local_infile = frappe.conf.local_infile)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/init.py”, line 94, in Connect
return Connection(*args, **kwargs)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/connections.py”, line 325, in init
self.connect()
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/connections.py”, line 599, in connect
self._request_authentication()
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/connections.py”, line 861, in _request_authentication
auth_packet = self._read_packet()
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/connections.py”, line 684, in _read_packet
packet.check_error()
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/protocol.py”, line 220, in check_error
err.raise_mysql_exception(self._data)
File “/home/lok/frappe-bench/env/lib/python3.6/site-packages/pymysql/err.py”, line 109, in raise_mysql_exception
raise errorclass(errno, errval)
pymysql.err.OperationalError: (1045, “Access denied for user ‘_1d4aaa53eb9ade17’@‘localhost’ (using password: YES)”)

A forum search gives this example pointer to try https://discuss.erpnext.com/t/bench-update-i-get-this-pymysql-err-operationalerror-1045-u-access-denied-for-user/41814Try