＆＃34; ORA-12401：无效的标签字符串：＆＃34;错误

Question

我正在尝试在Oracle中运行一个简单的更新语句来修改特定行的Integer字段。

UPDATE Mytable
SET field1 = 2
WHERE field2 = 11111;

但我收到此错误

SQL Error: ORA-12401: invalid label string: 
ORA-06512: at "LBACSYS.NUMERIC_LABEL_TO_CHAR", line 1
ORA-06512: at "LBACSYS.LBAC$BU0_92924", line 1
ORA-04088: error during execution of trigger 'LBACSYS.LBAC$BU0_92924'
12401. 00000 -  "invalid label string: %s"
*Cause:    The policy could not convert the label string to a valid
           internal label.
*Action:   Correct the syntax of the label string.

谷歌搜索没有带来太多结果。你对这个错误的解决方案有什么想法吗？