Internal unit °C, language EN is not maintained

Dear Experts,

I have error message "Internal unit °C, language EN is not maintained" When I Show the report ABAP and the display in report is ***********. I already check in Table T006A, Internal Unit °C already maintain in language EN and also check in T-Code Cuni, °C already maintained. What can i do to solved this problem?

Thank you for the great answers.

Best Regrads,

Bernardus Jalu