We'd like to migrate the mass delete button from classic to lightning, for this we installed Mass Delete app from app exchange
https://appexchange.salesforce.com/listingDetail?listingId=a0N300000016YuDEAU
 
This automatically created visual force pages and we created a list view button and added to the search layout. When we tried using the button we get the below error
 
Delete failed. First exception on row 0 with id 50090000024K0O7AAK; first error: INSUFFICIENT_ACCESS_OR_READONLY, insufficient access rights on object id: []
Error is in expression '{!deleteRecords}' in page mass_delete_case: Class.MassDeleteExtension.deleteRecords: line 18, column 1
 
 
An unexpected error has occurred. Your development organization has been notified.

I need to export a report as a CSV to an FTP site or email it on a daily or weekly basis.

 

I have a Report.  I need to get the report out of Salesforce somehow into CSV format.

 

Ideally, this would be scheduled.

I'm a developer so I can do developer stuff.  However, I don't know APEX and I don't know VisualForce.  I can get someone to do that stuff if we need to.

Thanks!