Airflow scheduler gets stuck - python-3.6

Question

I have setup airflow on Windows 10 WSL with Python 3.6.8. I started the scheduler of airflow using airflow scheduler command but it got following error :
[2020-04-28 19:24:06,500] {base_job.py:205} ERROR - SchedulerJob heartbeat got an exception
Traceback (most recent call last):
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 755, in _commit_impl
self.engine.dialect.do_commit(self.connection)
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 543, in do_commit
dbapi_connection.commit()
sqlite3.OperationalError: disk I/O error
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/akshay/.local/lib/python3.6/site-packages/airflow/jobs/base_job.py", line 173, in heartbeat
previous_heartbeat = self.latest_heartbeat
File "/usr/lib/python3.6/contextlib.py", line 88, in __exit__
next(self.gen)
File "/home/akshay/.local/lib/python3.6/site-packages/airflow/utils/db.py", line 45, in create_session
session.commit()
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 1036, in commit
self.transaction.commit()
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 507, in commit
t[1].commit()
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1736, in commit
self._do_commit()
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1767, in _do_commit
self.connection._commit_impl()
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 757, in _commit_impl
self._handle_dbapi_exception(e, None, None, None, None)
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1482, in _handle_dbapi_exception
sqlalchemy_exception, with_traceback=exc_info[2], from_=e
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 178, in raise_
raise exception
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 755, in _commit_impl
self.engine.dialect.do_commit(self.connection)
File "/home/akshay/.local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 543, in do_commit
dbapi_connection.commit()
sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) disk I/O error
(Background on this error at: http://sqlalche.me/e/e3q8)
What is the reason for this failing? What can be the solution to resolve this as my airflow scheduler is running well since last 10 days?