Error 1190 in module 19 during Restore

I make a back up of a sql db and restore it localy. I change the company name and try to make a new back up. At 10 % I get the following error message. There is an error ion the database structure error 1190 in module 19.

Hi Philippe, this error is caused by an ‘incorrect Alphatype’, not easy to find out, which means, that you have e.g. in a CODE-field an empty string: instead of ‘xyz’ you have 'xyz '. Michael