When installing your extension, I got the error below:
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'shipping_arrival_date'
The root of the issue:
This issue is caused because the table of our extension is not created in the DB when installing the extension.
Regarding your issue, we would suggest that you should try to reset up our extension on your site.
Please remove the extension version in the setup_module table on the database and rerun the upgrade.
Note: please run these commands:
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
Please check and follow our guide.
If the issue still happens, please don't hesitate to contact us at firstname.lastname@example.org
We'll happy to support you.