Bench update Error?

ikhlas@Ikhlas:~/erpnext/frappe-bench$ bench update
Already up-to-date.
Requirement already satisfied (use --upgrade to upgrade): Pillow in ./env/lib/python2.7/site-packages
From GitHub - frappe/frappe: Low code web framework for real world applications, in Python and Javascript

  • branch master → FETCH_HEAD
    Already up-to-date.
    From GitHub - frappe/erpnext: Free and Open Source Enterprise Resource Planning (ERP)
  • branch develop → FETCH_HEAD
    Already up-to-date.
    Migrating site1.local
    Updating frappe : [========================================]
    Updating erpnext : [========================================]
    Migrating ssh4
    Traceback (most recent call last):
    File “/usr/lib/python2.7/runpy.py”, line 162, in _run_module_as_main
    main”, fname, loader, pkg_name)
    File “/usr/lib/python2.7/runpy.py”, line 72, in _run_code
    exec code in run_globals
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 79, in
    main()
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 16, in main
    click.Group(commands=commands)(prog_name=‘bench’)
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 700, in call
    return self.main(*args, **kwargs)
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 680, in main
    rv = self.invoke(ctx)
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 1027, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 1027, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 873, in invoke
    return ctx.invoke(self.callback, **ctx.params)
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/core.py”, line 508, in invoke
    return callback(*args, **kwargs)
    File “/home/ikhlas/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/click/decorators.py”, line 16, in new_func
    return f(get_current_context(), *args, **kwargs)
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/commands.py”, line 29, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/commands.py”, line 213, in migrate
    frappe.modules.patch_handler.run_all()
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 21, in run_all
    executed = [p[0] for p in frappe.db.sql(“”“select patch from tabPatch Log”“”)]
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/database.py”, line 105, in sql
    self.connect()
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/database.py”, line 62, in connect
    self.use(self.user)
    File “/home/ikhlas/erpnext/frappe-bench/apps/frappe/frappe/database.py”, line 67, in use
    self._conn.select_db(db_name)
    _mysql_exceptions.OperationalError: (1049, “Unknown database ‘6a13fad156’”)
    Traceback (most recent call last):
    File “/usr/local/bin/bench”, line 9, in
    load_entry_point(‘bench==0.92’, ‘console_scripts’, ‘bench’)()
    File “/home/ikhlas/erpnext/bench-repo/bench/cli.py”, line 60, in cli
    bench()
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 700, in call
    return self.main(*args, **kwargs)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 680, in main
    rv = self.invoke(ctx)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 1027, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 873, in invoke
    return ctx.invoke(self.callback, **ctx.params)
    File “/usr/local/lib/python2.7/dist-packages/click/core.py”, line 508, in invoke
    return callback(*args, **kwargs)
    File “/home/ikhlas/erpnext/bench-repo/bench/cli.py”, line 240, in _update
    update(pull, patch, build, bench, auto, restart_supervisor, requirements, no_backup, upgrade, force=force)
    File “/home/ikhlas/erpnext/bench-repo/bench/cli.py”, line 273, in update
    patch_sites(bench=bench_path)
    File “/home/ikhlas/erpnext/bench-repo/bench/utils.py”, line 158, in patch_sites
    run_frappe_cmd(‘–site’, ‘all’, ‘migrate’, bench=bench)
    File “/home/ikhlas/erpnext/bench-repo/bench/utils.py”, line 489, in run_frappe_cmd
    raise CommandFailedError(args)
    bench.utils.CommandFailedError: (‘–site’, ‘all’, ‘migrate’)
    ikhlas@Ikhlas:~/erpnext/frappe-bench$

Your site folder is all messed up, you probably copied it from another place without copying the databases.

how toDo This???