Solution : https://service.sap.com/sap/support/notes/165877 (SAP Service marketplace login required)
Key words : 
additional key words sapscript, 6a data losses, logon language differs, characters allocate, entered text, russian text, cyrillic characters, codded incorrectly, incorrect characters, prerequisites error
Related Notes : 
       
| 443436 | Code page problem in the editor for documents of type RAW | 
| 417453 | PC editor: Systems with blended code page | 
| 103279 | SAPscript: PC Editor in different languages |