无法更新 rand_seed 的值

SQL Error: UPDATE command denied to user 'xdm71326084'@'8.210.221.127' for table 'phpbb_config'

SQL Code：UPDATE phpbb_config SET config_value = 'e9ff1fb80dcb666a03c566677646640f' WHERE config_name = 'rand_seed'

Error File: common.php

Error Line: 1733