Solution : https://service.sap.com/sap/support/notes/600227 (SAP Service marketplace login required)
Key words : 
forms/styles delivered, rstxinsh report cleans, rstxinsh report, rstxinsh reason, sapscript forms, customer forms, language transport, terms sapscript, solution implement, attached correction
Related Notes : 
       
| 326801 | Activating SAPscript forms after language transport |