1# Policy Management Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](errorcode-universal.md). 6 7## 2100001 Invalid Parameter Value 8 9**Error Message** 10 11Invalid parameter value. 12 13**Description** 14 15Invalid parameter value 16 17**Cause** 18 19The input parameter value is not within the valid value range. 20 21**Procedure** 22 23Check whether the input parameter value is within the valid value range. 24 25## 2100002 Service Connection Failure 26 27**Error Message** 28 29Operation failed. Cannot connect to service. 30 31**Description** 32 33This error code is reported if a service connection failure occurs. 34 35**Cause** 36 37The service is abnormal. 38 39**Procedure** 40 41Check whether system services are running properly. 42 43## 2100003 System Internal Error 44 45**Error Message** 46 47System internal error. 48 49**Description** 50 51This error code is reported if a system internal error occurs. 52 53**Cause** 54 551. The memory is abnormal. 56 572. A null pointer is present. 58 59**Procedure** 60 611. Check whether the memory space is sufficient. If not, clear the memory and try again. 62 632. Check whether the system is normal. If not, try again later or restart the device. 64