审核执行错误ORA-06502:PL/SQL:数字或值错误:字符串缓冲区太小

ORACLE816服务器已用了四年多,早两天开始出现"审核执行错误ORA-06502:PL/SQL:数字或值错误:字符串缓冲区太小                                
ORA-06512:在"EHD.DJSH_1",line 326                                                                    ORA-20999:错误号:-20999信息ORA-20999:错误号:-1654信息ORA-01654:索引EHD.IN_SP_POSQTY_01无法通过12137(在表   空         间INX1DB中)扩展                                                                                       ORA-06512:在"EHD.TRG_SPMXZ001",line               
     请检查错误原因重新审核!
     大虾们,这是哪个变量值小了,要怎么改?INIT里可以改还是要改程序包体里````