DB Engine Error: issue 1011- superset encountered an unexpected error. Invalid decryption key.

[waleedbamber]

I created some dashboards using datasets from PostgreSQL. After the dashboards were finalized and published, i stopped superset and turned off my laptop. when ran superset the next day, the graphs in my dashboard do not open and it says db engine error. Usually, when I run apache superset, I use these commands (The OS I use is Linux):
• Create a virtual environment by running: “python3 –m venv supersetvenv”.

• Activate the virtual environment with the command: “source supersetvenv/bin/activate”.

• Set the flask app by executing: “export FLASK_APP=super

• Generate a new security key using: “openssl rand -base64 42”

• Export the generated security key: “export SUPERSET_SECRET_KEY=”. (Replace with the generated key)

• Launch Apache-Superset by running: “superset run -p 8099 --with-threads --reload --debugger”.

[a-erkinov]

I'm also having a similar issue. In my case I changed my dataset from oracle to clickhouse.