Responsivizer - Control Panel shows
Warning
JFile: :read: Unable to open file: /home/jobera/public_html/templates/responsivizer/framework/modules/dbpositions.json
and
Error
Unknown column 'Array' in 'where clause' SQL=SELECT COUNT(*) FROM `#__modules` AS m LEFT JOIN `#__rvzr_modules` AS r ON m.id = r.id WHERE m.client_id = 0 AND m.position IN(Array) AND m.published >= 0

I found that the dbpositions.json file is missing.
Can I get it?

All the best

Very weird that you have deleted that file.
It's positioned at root/templates/responsivizer/framework/modules/dbpositions.json

To restore it, you can simply copy it by FTP from the component package, it's included in the package folder:
\subextensions\template\framework\modules\dbpositions.json

All the best
John