11i Forms compilation errors

Forms compilation errors parameter Recently all custom forms compilation failed with errors like these: FRM-18108: Failed to load the following objects. Source Module:APPSTAND Source Object: STANDARD_PC_AND_VA Source Module:APPSTAND Source Object: STANDARD_TOOLBAR Source Module:APPSTAND Source Object: STANDARD_CALENDAR Compiling package specification APP_CUSTOM… No compilation errors. or Compiling KEY-NXTBLK trigger on QUERY_FIND data block… Compilation error on KEY-NXTBLK…