Changing data class of a table

Hi Guys,

I am having problems on changing the data class from USER (Customer Data Class) to APPL0 (Master Data, Transparent Tables). The table already exist and contains 200+ records already. I tried changing the data class in the technical settings but when I am trying to save the changes this error occurs:

Cannot access file /usr/sap/MD7/trans/sapnames/GALT_P

What could be the possible fix for this error? GALT_P is in the last changed field.

Thanks!

Regards,

Mike Nacionales