I am getting this Error in customer Master

Dear Sir,

I am Getting the Following Error , when I am Viewing he Site details.

The data that defines the flexfield on this field may be inconsistent. Inform your system administrator that the function: KeyFlexfieldDefinitionFactory.getStructureNumber could not find the structure definition for the flexfield specified by Application = SQLGL, Code = GL# and Structure number = Low-level Diagnostic Logging is turned on. This may temporarily reduce performance. Application: FND, Message Name: FND_GENERIC_MESSAGE. Tokens: MESSAGE = java.sql.SQLException: ORA-20001: Operating unit -1 does not exist in the target database. ORA-06512: at "APPS.APP_EXCEPTION", line 72 ORA-06512: at "APPS.GL_GLOBAL", line 65 ORA-06512: at line 1 ;