Field 'params' doesn't have a default value

Hi Dima,
when editing a place on the map in the administration, it is not possible to make a copy or save it in any way, it says: Saving failed due to the following error Field 'params' doesn't have a default value
OpenstreetMap
Joomla 4.1.5 PHP 7.4.12
Pavel

I too am having the same issue Map.

Hi
Can you explain more.
Do you install my beta, or do you install from JED

Do you have the last version of component, today it is 8.22.7.28

If you have not last version - check it for update in Extension Manager

I test, and can't reproduce it. Give me more explanation, what do you want to save or save as (map, placemark, group ...)

It won't let me install it as it says this:

JInstaller: :Install: Error SQL Duplicate column name 'kmllayer'
Extension installation aborted.
Package Update: There was an error installing an extension: com_zhgooglemap.zip

Warning
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/components/com_zhgooglemap/models
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/components/com_zhgooglemap/views
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/administrator/components/com_zhgooglemap/models
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/administrator/components/com_zhgooglemap/views
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/administrator/components/com_zhgooglemap/controllers
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/administrator/components/com_zhgooglemap/tables
Joomla\CMS\Filesystem\Folder::delete: Path is not a folder. Path: [ROOT]/administrator/components/com_zhgooglemap/helpers
JInstaller: :Install: Error SQL Duplicate column name 'kmllayer'
Extension installation aborted.
Before updating ensure that the update is compatible with your Joomla! installation.
You are strongly advised to make a backup of your site's files and database before you start updating.

snipboard.io/LyolMQ.jpg

This is happening on every site I am migrating.

I don't know how do you get this errors, probably you use backup - restore process (in this case database not rollbacks)
In your case to fix problem of field duplication you need:
- unzip component archive
- go to admin/sql/updates/mysql
- search file with alter table, where adding column, for example "kmllayer"
- open file, remove this line, save file
- zip file and install component

Probably you will need to change more than one file (more than one column)