Error 3090: Server unwilling to perform.

Hi everyone. I encountered issue with PGP command line and Symantec Encryption Management Server as follows.

C:\Users\xxxx>pgp --keyserver-send "System A"
pgp:keyserver send (2710:days left in current license, 25)
0x215381AA:keyserver send (2509:keyserver error)
ldap://xxx.xxx.xxx.xxx:389/:keyserver send (3090:operation failed, Server is unwilling to perform)

Based on the error code, it seems to be the issue with the server's schema. Any help would be appreciated.

PGP Command Line 10.4.2 build 61

SEMS version: 3.4.2 MP2 (build 502)